87956620 has 12 divisors (see below), whose sum is σ = 184708944. Its totient is φ = 35182640.

The previous prime is 87956611. The next prime is 87956621. The reversal of 87956620 is 2665978.

It is not an unprimeable number, because it can be changed into a prime (87956621) 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 3 ways as a sum of consecutive naturals, for example, 2198896 + ... + 2198935.

It is an arithmetic number, because the mean of its divisors is an integer number (15392412).

Almost surely, 2^87956620 is an apocalyptic number.

It is an amenable number.

87956620 is an abundant number, since it is smaller than the sum of its proper divisors (96752324).

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

87956620 is a wasteful number, since it uses less digits than its factorization.

87956620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4397840 (or 4397838 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 87956620 is about 9378.5190728601. The cubic root of 87956620 is about 444.7229180279.

The spelling of 87956620 in words is "eighty-seven million, nine hundred fifty-six thousand, six hundred twenty".