87570967 has 6 divisors (see below), whose sum is σ = 96255824. Its totient is φ = 79609860.

The previous prime is 87570949. The next prime is 87570979. The reversal of 87570967 is 76907578.

It is not a de Polignac number, because 87570967 - 2²³ = 79182359 is a prime.

It is a super-2 number, since 2×87570967² = 15337348522630178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87570967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87570907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361743 + ... + 361984.

Almost surely, 2^87570967 is an apocalyptic number.

87570967 is a deficient number, since it is larger than the sum of its proper divisors (8684857).

87570967 is a wasteful number, since it uses less digits than its factorization.

87570967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723749 (or 723738 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 87570967 is about 9357.9360438080. The cubic root of 87570967 is about 444.0719910726.

The spelling of 87570967 in words is "eighty-seven million, five hundred seventy thousand, nine hundred sixty-seven".