87022564 has 12 divisors (see below), whose sum is σ = 152378044. Its totient is φ = 43485984.

The previous prime is 87022561. The next prime is 87022577. The reversal of 87022564 is 46522078.

It can be written as a sum of positive squares in 2 ways, for example, as 19289664 + 67732900 = 4392^2 + 8230^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87022561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2914 + ... + 13510.

Almost surely, 2^87022564 is an apocalyptic number.

It is an amenable number.

87022564 is a deficient number, since it is larger than the sum of its proper divisors (65355480).

87022564 is a wasteful number, since it uses less digits than its factorization.

87022564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12654 (or 12652 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 87022564 is about 9328.5885320342. The cubic root of 87022564 is about 443.1430661985.

The spelling of 87022564 in words is "eighty-seven million, twenty-two thousand, five hundred sixty-four".