87974636 has 48 divisors (see below), whose sum is σ = 166961760. Its totient is φ = 40435200.

The previous prime is 87974581. The next prime is 87974639. The reversal of 87974636 is 63647978.

It is not an unprimeable number, because it can be changed into a prime (87974639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560270 + ... + 560426.

It is an arithmetic number, because the mean of its divisors is an integer number (3478370).

Almost surely, 2^87974636 is an apocalyptic number.

It is an amenable number.

87974636 is a deficient number, since it is larger than the sum of its proper divisors (78987124).

87974636 is a wasteful number, since it uses less digits than its factorization.

87974636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 352 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 87974636 is about 9379.4795164764. The cubic root of 87974636 is about 444.7532798931.

The spelling of 87974636 in words is "eighty-seven million, nine hundred seventy-four thousand, six hundred thirty-six".