698874264169 has 3 divisors (see below), whose sum is σ = 698875100157. Its totient is φ = 698873428182.

The previous prime is 698874264097. The next prime is 698874264181. The reversal of 698874264169 is 961462478896.

The square root of 698874264169 is 835987.

It is a perfect power (a square), and thus also a powerful number.

698874264169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 698874264169 - 2⁹ = 698874263657 is a prime.

It is a super-2 number, since 2×698874264169² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 698874264098 and 698874264107.

It is not an unprimeable number, because it can be changed into a prime (698874264769) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 417994 + ... + 1253980.

It is an arithmetic number, because the mean of its divisors is an integer number (232958366719).

Almost surely, 2^698874264169 is an apocalyptic number.

698874264169 is the 835987-th square number.

698874264169 is the 417994-th centered octagonal number.

It is an amenable number.

698874264169 is a deficient number, since it is larger than the sum of its proper divisors (835988).

698874264169 is an frugal number, since it uses more digits than its factorization.

698874264169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671974 (or 835987 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 70.

The spelling of 698874264169 in words is "six hundred ninety-eight billion, eight hundred seventy-four million, two hundred sixty-four thousand, one hundred sixty-nine".