87442612 has 24 divisors (see below), whose sum is σ = 155748096. Its totient is φ = 42948288.

The previous prime is 87442603. The next prime is 87442657. The reversal of 87442612 is 21624478.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100893 + ... + 101755.

It is an arithmetic number, because the mean of its divisors is an integer number (6489504).

Almost surely, 2^87442612 is an apocalyptic number.

It is an amenable number.

87442612 is a deficient number, since it is larger than the sum of its proper divisors (68305484).

87442612 is a wasteful number, since it uses less digits than its factorization.

87442612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1285 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 87442612 is about 9351.0754461720. The cubic root of 87442612 is about 443.8549224356.

The spelling of 87442612 in words is "eighty-seven million, four hundred forty-two thousand, six hundred twelve".