87605668 has 12 divisors (see below), whose sum is σ = 153695052. Its totient is φ = 43692800.

The previous prime is 87605657. The next prime is 87605701. The reversal of 87605668 is 86650678.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75481344 + 12124324 = 8688^2 + 3482^2 .

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, 25705 + ... + 28912.

It is an arithmetic number, because the mean of its divisors is an integer number (12807921).

Almost surely, 2^87605668 is an apocalyptic number.

It is an amenable number.

87605668 is a deficient number, since it is larger than the sum of its proper divisors (66089384).

87605668 is a wasteful number, since it uses less digits than its factorization.

87605668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55022 (or 55020 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 87605668 is about 9359.7899549082. The cubic root of 87605668 is about 444.1306395330.

The spelling of 87605668 in words is "eighty-seven million, six hundred five thousand, six hundred sixty-eight".