87493536 has 72 divisors (see below), whose sum is σ = 267960420. Its totient is φ = 26919936.

The previous prime is 87493507. The next prime is 87493547. The reversal of 87493536 is 63539478.

It can be written as a sum of positive squares in 2 ways, for example, as 73205136 + 14288400 = 8556^2 + 3780^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 87493491 and 87493500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7941 + ... + 15428.

Almost surely, 2^87493536 is an apocalyptic number.

It is an amenable number.

87493536 is an abundant number, since it is smaller than the sum of its proper divisors (180466884).

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

87493536 is a wasteful number, since it uses less digits than its factorization.

87493536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23398 (or 23387 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 87493536 is about 9353.7979452199. The cubic root of 87493536 is about 443.9410683898.

The spelling of 87493536 in words is "eighty-seven million, four hundred ninety-three thousand, five hundred thirty-six".