87609658 has 16 divisors (see below), whose sum is σ = 136071936. Its totient is φ = 42261120.

The previous prime is 87609649. The next prime is 87609659. The reversal of 87609658 is 85690678.

It is not an unprimeable number, because it can be changed into a prime (87609659) 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, 19885 + ... + 23887.

It is an arithmetic number, because the mean of its divisors is an integer number (8504496).

Almost surely, 2^87609658 is an apocalyptic number.

87609658 is a deficient number, since it is larger than the sum of its proper divisors (48462278).

87609658 is a wasteful number, since it uses less digits than its factorization.

87609658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 87609658 is about 9360.0030982901. The cubic root of 87609658 is about 444.1373820737.

The spelling of 87609658 in words is "eighty-seven million, six hundred nine thousand, six hundred fifty-eight".