87450564 has 12 divisors (see below), whose sum is σ = 204051344. Its totient is φ = 29150184.

The previous prime is 87450553. The next prime is 87450607. The reversal of 87450564 is 46505478.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×87450564² = 15295202287836192, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3643762 + ... + 3643785.

Almost surely, 2^87450564 is an apocalyptic number.

It is an amenable number.

87450564 is an abundant number, since it is smaller than the sum of its proper divisors (116600780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87450564 is a wasteful number, since it uses less digits than its factorization.

87450564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7287554 (or 7287552 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 87450564 is about 9351.5006282414. The cubic root of 87450564 is about 443.8683766973.

The spelling of 87450564 in words is "eighty-seven million, four hundred fifty thousand, five hundred sixty-four".