87562901 has 2 divisors, whose sum is σ = 87562902. Its totient is φ = 87562900.

The previous prime is 87562823. The next prime is 87562931. The reversal of 87562901 is 10926578.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 17422276 = 8375^2 + 4174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87562901 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87562931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43781450 + 43781451.

It is an arithmetic number, because the mean of its divisors is an integer number (43781451).

Almost surely, 2^87562901 is an apocalyptic number.

It is an amenable number.

87562901 is a deficient number, since it is larger than the sum of its proper divisors (1).

87562901 is an equidigital number, since it uses as much as digits as its factorization.

87562901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 87562901 is about 9357.5050627825. The cubic root of 87562901 is about 444.0583564370.

The spelling of 87562901 in words is "eighty-seven million, five hundred sixty-two thousand, nine hundred one".