23087657 has 2 divisors, whose sum is σ = 23087658. Its totient is φ = 23087656.

The previous prime is 23087629. The next prime is 23087663. The reversal of 23087657 is 75678032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16410601 + 6677056 = 4051^2 + 2584^2 .

It is a cyclic number.

It is not a de Polignac number, because 23087657 - 2¹⁴ = 23071273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23087657.

It is not a weakly prime, because it can be changed into another prime (23087627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11543828 + 11543829.

It is an arithmetic number, because the mean of its divisors is an integer number (11543829).

Almost surely, 2^23087657 is an apocalyptic number.

It is an amenable number.

23087657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23087657 is an equidigital number, since it uses as much as digits as its factorization.

23087657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 23087657 is about 4804.9617064031. The cubic root of 23087657 is about 284.7475223727.

The spelling of 23087657 in words is "twenty-three million, eighty-seven thousand, six hundred fifty-seven".