87112642 has 16 divisors (see below), whose sum is σ = 132324192. Its totient is φ = 43008160.

The previous prime is 87112639. The next prime is 87112643. The reversal of 87112642 is 24621178.

It is a super-2 number, since 2×87112642² = 15177224792440328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87112643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60333 + ... + 61759.

It is an arithmetic number, because the mean of its divisors is an integer number (8270262).

Almost surely, 2^87112642 is an apocalyptic number.

87112642 is a deficient number, since it is larger than the sum of its proper divisors (45211550).

87112642 is a wasteful number, since it uses less digits than its factorization.

87112642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793.

The product of its digits is 5376, while the sum is 31.

The square root of 87112642 is about 9333.4153448778. The cubic root of 87112642 is about 443.2959142041.

The spelling of 87112642 in words is "eighty-seven million, one hundred twelve thousand, six hundred forty-two".