87845964 has 12 divisors (see below), whose sum is σ = 204973944. Its totient is φ = 29281984.

The previous prime is 87845951. The next prime is 87845977. The reversal of 87845964 is 46954878.

It is an interprime number because it is at equal distance from previous prime (87845951) and next prime (87845977).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3660237 + ... + 3660260.

It is an arithmetic number, because the mean of its divisors is an integer number (17081162).

Almost surely, 2^87845964 is an apocalyptic number.

It is an amenable number.

87845964 is an abundant number, since it is smaller than the sum of its proper divisors (117127980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87845964 is a wasteful number, since it uses less digits than its factorization.

87845964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320504 (or 7320502 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 87845964 is about 9372.6177773341. The cubic root of 87845964 is about 444.5363415436.

The spelling of 87845964 in words is "eighty-seven million, eight hundred forty-five thousand, nine hundred sixty-four".