87042584 has 16 divisors (see below), whose sum is σ = 172805400. Its totient is φ = 40961152.

The previous prime is 87042583. The next prime is 87042617. The reversal of 87042584 is 48524078.

It is a super-2 number, since 2×87042584² = 15152822858794112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87042583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319874 + ... + 320145.

Almost surely, 2^87042584 is an apocalyptic number.

It is an amenable number.

87042584 is a deficient number, since it is larger than the sum of its proper divisors (85762816).

87042584 is a wasteful number, since it uses less digits than its factorization.

87042584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640042 (or 640038 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 87042584 is about 9329.6615158322. The cubic root of 87042584 is about 443.1770460597.

The spelling of 87042584 in words is "eighty-seven million, forty-two thousand, five hundred eighty-four".