87913732 has 48 divisors (see below), whose sum is σ = 170478000. Its totient is φ = 39481344.

The previous prime is 87913699. The next prime is 87913753. The reversal of 87913732 is 23731978.

It can be written as a sum of positive squares in 8 ways, for example, as 20575296 + 67338436 = 4536^2 + 8206^2 .

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 15 ways as a sum of consecutive naturals, for example, 214744 + ... + 215152.

It is an arithmetic number, because the mean of its divisors is an integer number (3551625).

Almost surely, 2^87913732 is an apocalyptic number.

It is an amenable number.

87913732 is a deficient number, since it is larger than the sum of its proper divisors (82564268).

87913732 is a wasteful number, since it uses less digits than its factorization.

87913732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 566 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 87913732 is about 9376.2322923443. The cubic root of 87913732 is about 444.6506233846.

The spelling of 87913732 in words is "eighty-seven million, nine hundred thirteen thousand, seven hundred thirty-two".