698496823 has 4 divisors (see below), whose sum is σ = 703522120. Its totient is φ = 693471528.

The previous prime is 698496817. The next prime is 698496853. The reversal of 698496823 is 328694896.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 698496823 - 2²⁵ = 664942391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698496803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2512440 + ... + 2512717.

It is an arithmetic number, because the mean of its divisors is an integer number (175880530).

Almost surely, 2^698496823 is an apocalyptic number.

698496823 is a deficient number, since it is larger than the sum of its proper divisors (5025297).

698496823 is a wasteful number, since it uses less digits than its factorization.

698496823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025296.

The product of its digits is 4478976, while the sum is 55.

The square root of 698496823 is about 26429.0904686484. The cubic root of 698496823 is about 887.2679858498.

The spelling of 698496823 in words is "six hundred ninety-eight million, four hundred ninety-six thousand, eight hundred twenty-three".