23732257 has 2 divisors, whose sum is σ = 23732258. Its totient is φ = 23732256.

The previous prime is 23732239. The next prime is 23732299. The reversal of 23732257 is 75223732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21013056 + 2719201 = 4584^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 23732257 - 2⁷ = 23732129 is a prime.

It is not a weakly prime, because it can be changed into another prime (23732057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11866128 + 11866129.

It is an arithmetic number, because the mean of its divisors is an integer number (11866129).

Almost surely, 2^23732257 is an apocalyptic number.

It is an amenable number.

23732257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23732257 is an equidigital number, since it uses as much as digits as its factorization.

23732257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 31.

The square root of 23732257 is about 4871.5764388953. The cubic root of 23732257 is about 287.3732552858.

Adding to 23732257 its reverse (75223732), we get a palindrome (98955989).

The spelling of 23732257 in words is "twenty-three million, seven hundred thirty-two thousand, two hundred fifty-seven".