87956163 has 12 divisors (see below), whose sum is σ = 132571920. Its totient is φ = 56087856.

The previous prime is 87956161. The next prime is 87956171. The reversal of 87956163 is 36165978.

It is a happy number.

87956163 is a `hidden beast` number, since 87 + 9 + 561 + 6 + 3 = 666.

It is not a de Polignac number, because 87956163 - 2¹ = 87956161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87956161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212248 + ... + 212661.

It is an arithmetic number, because the mean of its divisors is an integer number (11047660).

Almost surely, 2^87956163 is an apocalyptic number.

87956163 is a deficient number, since it is larger than the sum of its proper divisors (44615757).

87956163 is a wasteful number, since it uses less digits than its factorization.

87956163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424938 (or 424935 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 87956163 is about 9378.4947086406. The cubic root of 87956163 is about 444.7221478046.

The spelling of 87956163 in words is "eighty-seven million, nine hundred fifty-six thousand, one hundred sixty-three".