87642082 has 16 divisors (see below), whose sum is σ = 144810432. Its totient is φ = 39449520.

The previous prime is 87642077. The next prime is 87642091. The reversal of 87642082 is 28024678.

It is a super-2 number, since 2×87642082² = 15362269074589448, which contains 22 as substring.

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, 17073 + ... + 21604.

It is an arithmetic number, because the mean of its divisors is an integer number (9050652).

Almost surely, 2^87642082 is an apocalyptic number.

87642082 is a deficient number, since it is larger than the sum of its proper divisors (57168350).

87642082 is a wasteful number, since it uses less digits than its factorization.

87642082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38793.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 87642082 is about 9361.7349887721. The cubic root of 87642082 is about 444.1921664990.

The spelling of 87642082 in words is "eighty-seven million, six hundred forty-two thousand, eighty-two".