87499236 has 48 divisors (see below), whose sum is σ = 229920768. Its totient is φ = 25658400.

The previous prime is 87499231. The next prime is 87499261. The reversal of 87499236 is 63299478.

It is a super-2 number, since 2×87499236² = 15312232601167392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87499231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6600 + ... + 14783.

It is an arithmetic number, because the mean of its divisors is an integer number (4790016).

Almost surely, 2^87499236 is an apocalyptic number.

It is an amenable number.

87499236 is an abundant number, since it is smaller than the sum of its proper divisors (142421532).

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

87499236 is a wasteful number, since it uses less digits than its factorization.

87499236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21432 (or 21430 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 87499236 is about 9354.1026293279. The cubic root of 87499236 is about 443.9507087558.

The spelling of 87499236 in words is "eighty-seven million, four hundred ninety-nine thousand, two hundred thirty-six".