87624780 has 24 divisors (see below), whose sum is σ = 245349552. Its totient is φ = 23366592.

The previous prime is 87624767. The next prime is 87624791. The reversal of 87624780 is 8742678.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730147 + ... + 730266.

It is an arithmetic number, because the mean of its divisors is an integer number (10222898).

Almost surely, 2^87624780 is an apocalyptic number.

It is an amenable number.

87624780 is an abundant number, since it is smaller than the sum of its proper divisors (157724772).

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

87624780 is a wasteful number, since it uses less digits than its factorization.

87624780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460425 (or 1460423 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 87624780 is about 9360.8108623132. The cubic root of 87624780 is about 444.1629342760.

The spelling of 87624780 in words is "eighty-seven million, six hundred twenty-four thousand, seven hundred eighty".