87499998 has 12 divisors (see below), whose sum is σ = 189583368. Its totient is φ = 29166660.

The previous prime is 87499967. The next prime is 87500029. The reversal of 87499998 is 89999478.

It is an interprime number because it is at equal distance from previous prime (87499967) and next prime (87500029).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2430538 + ... + 2430573.

It is an arithmetic number, because the mean of its divisors is an integer number (15798614).

Almost surely, 2^87499998 is an apocalyptic number.

87499998 is an abundant number, since it is smaller than the sum of its proper divisors (102083370).

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

87499998 is a wasteful number, since it uses less digits than its factorization.

87499998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4861119 (or 4861116 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 87499998 is about 9354.1433600304. The cubic root of 87499998 is about 443.9519974888.

The spelling of 87499998 in words is "eighty-seven million, four hundred ninety-nine thousand, nine hundred ninety-eight".