87708072 has 16 divisors (see below), whose sum is σ = 219270240. Its totient is φ = 29236016.

The previous prime is 87708053. The next prime is 87708073. The reversal of 87708072 is 27080778.

It is a self number, because there is not a number n which added to its sum of digits gives 87708072.

It is not an unprimeable number, because it can be changed into a prime (87708073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1827228 + ... + 1827275.

It is an arithmetic number, because the mean of its divisors is an integer number (13704390).

Almost surely, 2^87708072 is an apocalyptic number.

It is an amenable number.

87708072 is an abundant number, since it is smaller than the sum of its proper divisors (131562168).

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

87708072 is a wasteful number, since it uses less digits than its factorization.

87708072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654512 (or 3654508 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 87708072 is about 9365.2587791262. The cubic root of 87708072 is about 444.3036231821.

The spelling of 87708072 in words is "eighty-seven million, seven hundred eight thousand, seventy-two".