23972790 has 16 divisors (see below), whose sum is σ = 57534768. Its totient is φ = 6392736.

The previous prime is 23972761. The next prime is 23972803. The reversal of 23972790 is 9727932.

It is a plaindrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399517 + ... + 399576.

It is an arithmetic number, because the mean of its divisors is an integer number (3595923).

Almost surely, 2^23972790 is an apocalyptic number.

23972790 is an abundant number, since it is smaller than the sum of its proper divisors (33561978).

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

23972790 is a wasteful number, since it uses less digits than its factorization.

23972790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799103.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 23972790 is about 4896.2015889871. The cubic root of 23972790 is about 288.3408628088.

The spelling of 23972790 in words is "twenty-three million, nine hundred seventy-two thousand, seven hundred ninety".