87481956 has 24 divisors (see below), whose sum is σ = 204410304. Its totient is φ = 29119840.

The previous prime is 87481943. The next prime is 87481957. The reversal of 87481956 is 65918478.

It is not an unprimeable number, because it can be changed into a prime (87481957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4561 + ... + 13991.

It is an arithmetic number, because the mean of its divisors is an integer number (8517096).

Almost surely, 2^87481956 is an apocalyptic number.

It is an amenable number.

87481956 is an abundant number, since it is smaller than the sum of its proper divisors (116928348).

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

87481956 is a wasteful number, since it uses less digits than its factorization.

87481956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10211 (or 10209 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 87481956 is about 9353.1789248362. The cubic root of 87481956 is about 443.9214819356.

The spelling of 87481956 in words is "eighty-seven million, four hundred eighty-one thousand, nine hundred fifty-six".