87073144 has 16 divisors (see below), whose sum is σ = 166030200. Its totient is φ = 42798432.

The previous prime is 87073139. The next prime is 87073153. The reversal of 87073144 is 44137078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91767 + ... + 92710.

Almost surely, 2^87073144 is an apocalyptic number.

It is an amenable number.

87073144 is a deficient number, since it is larger than the sum of its proper divisors (78957056).

87073144 is a wasteful number, since it uses less digits than its factorization.

87073144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184542 (or 184538 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 87073144 is about 9331.2991592811. The cubic root of 87073144 is about 443.2289053728.

The spelling of 87073144 in words is "eighty-seven million, seventy-three thousand, one hundred forty-four".