87611912 has 16 divisors (see below), whose sum is σ = 164764860. Its totient is φ = 43674624.

The previous prime is 87611857. The next prime is 87611917. The reversal of 87611912 is 21911678.

It can be written as a sum of positive squares in 2 ways, for example, as 87347716 + 264196 = 9346^2 + 514^2 .

It is not an unprimeable number, because it can be changed into a prime (87611917) by changing a digit.

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, 13553 + ... + 18944.

Almost surely, 2^87611912 is an apocalyptic number.

It is an amenable number.

87611912 is a deficient number, since it is larger than the sum of its proper divisors (77152948).

87611912 is a wasteful number, since it uses less digits than its factorization.

87611912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32840 (or 32836 counting only the distinct ones).

The product of its digits is 6048, while the sum is 35.

The square root of 87611912 is about 9360.1235034587. The cubic root of 87611912 is about 444.1411909273.

The spelling of 87611912 in words is "eighty-seven million, six hundred eleven thousand, nine hundred twelve".