23785231 has 4 divisors (see below), whose sum is σ = 23803200. Its totient is φ = 23767264.

The previous prime is 23785219. The next prime is 23785247. The reversal of 23785231 is 13258732.

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 23785231 - 2⁷ = 23785103 is a prime.

It is a super-2 number, since 2×23785231² = 1131474427446722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23785193 and 23785202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23785211) 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, 6826 + ... + 9703.

It is an arithmetic number, because the mean of its divisors is an integer number (5950800).

Almost surely, 2^23785231 is an apocalyptic number.

23785231 is a deficient number, since it is larger than the sum of its proper divisors (17969).

23785231 is a wasteful number, since it uses less digits than its factorization.

23785231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17968.

The product of its digits is 10080, while the sum is 31.

The square root of 23785231 is about 4877.0104572371. The cubic root of 23785231 is about 287.5869166320.

The spelling of 23785231 in words is "twenty-three million, seven hundred eighty-five thousand, two hundred thirty-one".