87447480 has 32 divisors (see below), whose sum is σ = 262342800. Its totient is φ = 23319296.

The previous prime is 87447467. The next prime is 87447491. The reversal of 87447480 is 8474478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364245 + ... + 364484.

Almost surely, 2^87447480 is an apocalyptic number.

It is an amenable number.

87447480 is an abundant number, since it is smaller than the sum of its proper divisors (174895320).

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

87447480 is a wasteful number, since it uses less digits than its factorization.

87447480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728743 (or 728739 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 42.

The square root of 87447480 is about 9351.3357334661. The cubic root of 87447480 is about 443.8631588687.

The spelling of 87447480 in words is "eighty-seven million, four hundred forty-seven thousand, four hundred eighty".