87667056 has 40 divisors (see below), whose sum is σ = 251638160. Its totient is φ = 29222208.

The previous prime is 87667049. The next prime is 87667057. The reversal of 87667056 is 65076678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87667057) 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, 101035 + ... + 101898.

It is an arithmetic number, because the mean of its divisors is an integer number (6290954).

Almost surely, 2^87667056 is an apocalyptic number.

It is an amenable number.

87667056 is an abundant number, since it is smaller than the sum of its proper divisors (163971104).

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

87667056 is a wasteful number, since it uses less digits than its factorization.

87667056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202950 (or 202938 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 87667056 is about 9363.0687277196. The cubic root of 87667056 is about 444.2343540015.

The spelling of 87667056 in words is "eighty-seven million, six hundred sixty-seven thousand, fifty-six".