23690529 has 16 divisors (see below), whose sum is σ = 36624000. Its totient is φ = 15106608.

The previous prime is 23690521. The next prime is 23690543. The reversal of 23690529 is 92509632.

It is not a de Polignac number, because 23690529 - 2³ = 23690521 is a prime.

It is a super-2 number, since 2×23690529² = 1122482328599682, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23690493 and 23690502.

It is not an unprimeable number, because it can be changed into a prime (23690521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18454 + ... + 19695.

It is an arithmetic number, because the mean of its divisors is an integer number (2289000).

Almost surely, 2^23690529 is an apocalyptic number.

It is an amenable number.

23690529 is a deficient number, since it is larger than the sum of its proper divisors (12933471).

23690529 is a wasteful number, since it uses less digits than its factorization.

23690529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38181 (or 38175 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 23690529 is about 4867.2917520938. The cubic root of 23690529 is about 287.2047287353.

The spelling of 23690529 in words is "twenty-three million, six hundred ninety thousand, five hundred twenty-nine".