87405708 has 24 divisors (see below), whose sum is σ = 219635248. Its totient is φ = 26894016.

The previous prime is 87405673. The next prime is 87405737. The reversal of 87405708 is 80750478.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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, 279991 + ... + 280302.

Almost surely, 2^87405708 is an apocalyptic number.

It is an amenable number.

87405708 is an abundant number, since it is smaller than the sum of its proper divisors (132229540).

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

87405708 is a wasteful number, since it uses less digits than its factorization.

87405708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560313 (or 560311 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 87405708 is about 9349.1019889613. The cubic root of 87405708 is about 443.7924726126.

The spelling of 87405708 in words is "eighty-seven million, four hundred five thousand, seven hundred eight".