87964415 has 16 divisors (see below), whose sum is σ = 131604480. Its totient is φ = 54834720.

The previous prime is 87964381. The next prime is 87964421. The reversal of 87964415 is 51446978.

It is not a de Polignac number, because 87964415 - 2²⁰ = 86915839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113855 + ... + 114624.

It is an arithmetic number, because the mean of its divisors is an integer number (8225280).

Almost surely, 2^87964415 is an apocalyptic number.

87964415 is a deficient number, since it is larger than the sum of its proper divisors (43640065).

87964415 is a wasteful number, since it uses less digits than its factorization.

87964415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228502.

The product of its digits is 241920, while the sum is 44.

The square root of 87964415 is about 9378.9346409920. The cubic root of 87964415 is about 444.7360552340.

The spelling of 87964415 in words is "eighty-seven million, nine hundred sixty-four thousand, four hundred fifteen".