698106901 has 4 divisors (see below), whose sum is σ = 698182912. Its totient is φ = 698030892.

The previous prime is 698106859. The next prime is 698106919. The reversal of 698106901 is 109601896.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 698106901 - 2⁹ = 698106389 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 (698106961) 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, 21975 + ... + 43348.

It is an arithmetic number, because the mean of its divisors is an integer number (174545728).

Almost surely, 2^698106901 is an apocalyptic number.

It is an amenable number.

698106901 is a deficient number, since it is larger than the sum of its proper divisors (76011).

698106901 is a wasteful number, since it uses less digits than its factorization.

698106901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76010.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 698106901 is about 26421.7126810508. The cubic root of 698106901 is about 887.1028551996.

The spelling of 698106901 in words is "six hundred ninety-eight million, one hundred six thousand, nine hundred one".