87358657 has 2 divisors, whose sum is σ = 87358658. Its totient is φ = 87358656.

The previous prime is 87358639. The next prime is 87358717. The reversal of 87358657 is 75685378.

87358657 is nontrivially palindromic in base 15.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84566416 + 2792241 = 9196^2 + 1671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87358657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87358657.

It is not a weakly prime, because it can be changed into another prime (87358627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43679328 + 43679329.

It is an arithmetic number, because the mean of its divisors is an integer number (43679329).

Almost surely, 2^87358657 is an apocalyptic number.

It is an amenable number.

87358657 is a deficient number, since it is larger than the sum of its proper divisors (1).

87358657 is an equidigital number, since it uses as much as digits as its factorization.

87358657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 49.

The square root of 87358657 is about 9346.5853122945. The cubic root of 87358657 is about 443.7128262981.

The spelling of 87358657 in words is "eighty-seven million, three hundred fifty-eight thousand, six hundred fifty-seven".