23835681 has 16 divisors (see below), whose sum is σ = 35476800. Its totient is φ = 15816384.

The previous prime is 23835677. The next prime is 23835727. The reversal of 23835681 is 18653832.

It is not a de Polignac number, because 23835681 - 2² = 23835677 is a prime.

It is a super-2 number, since 2×23835681² = 1136279377467522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23835601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185 + ... + 8073.

It is an arithmetic number, because the mean of its divisors is an integer number (2217300).

Almost surely, 2^23835681 is an apocalyptic number.

It is an amenable number.

23835681 is a deficient number, since it is larger than the sum of its proper divisors (11641119).

23835681 is a wasteful number, since it uses less digits than its factorization.

23835681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125 (or 4119 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 23835681 is about 4882.1799434269. The cubic root of 23835681 is about 287.7901031389.

The spelling of 23835681 in words is "twenty-three million, eight hundred thirty-five thousand, six hundred eighty-one".