23923937 has 2 divisors, whose sum is σ = 23923938. Its totient is φ = 23923936.

The previous prime is 23923931. The next prime is 23923957. The reversal of 23923937 is 73932932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16394401 + 7529536 = 4049^2 + 2744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23923937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23923937.

It is not a weakly prime, because it can be changed into another prime (23923931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11961968 + 11961969.

It is an arithmetic number, because the mean of its divisors is an integer number (11961969).

Almost surely, 2^23923937 is an apocalyptic number.

It is an amenable number.

23923937 is a deficient number, since it is larger than the sum of its proper divisors (1).

23923937 is an equidigital number, since it uses as much as digits as its factorization.

23923937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 38.

The square root of 23923937 is about 4891.2101774510. The cubic root of 23923937 is about 288.1448642673.

The spelling of 23923937 in words is "twenty-three million, nine hundred twenty-three thousand, nine hundred thirty-seven".