23431698 has 12 divisors (see below), whose sum is σ = 50768718. Its totient is φ = 7810560.

The previous prime is 23431679. The next prime is 23431699. The reversal of 23431698 is 89613432.

It can be written as a sum of positive squares in only one way, i.e., 23299929 + 131769 = 4827^2 + 363^2 .

It is not an unprimeable number, because it can be changed into a prime (23431699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 650863 + ... + 650898.

Almost surely, 2^23431698 is an apocalyptic number.

23431698 is an abundant number, since it is smaller than the sum of its proper divisors (27337020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23431698 is a wasteful number, since it uses less digits than its factorization.

23431698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301769 (or 1301766 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 23431698 is about 4840.6299176863. The cubic root of 23431698 is about 286.1549439978.

The spelling of 23431698 in words is "twenty-three million, four hundred thirty-one thousand, six hundred ninety-eight".