87493998 has 16 divisors (see below), whose sum is σ = 175115520. Its totient is φ = 29143416.

The previous prime is 87493981. The next prime is 87494003. The reversal of 87493998 is 89939478.

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, 5211 + ... + 14217.

It is an arithmetic number, because the mean of its divisors is an integer number (10944720).

Almost surely, 2^87493998 is an apocalyptic number.

87493998 is an abundant number, since it is smaller than the sum of its proper divisors (87621522).

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

87493998 is a wasteful number, since it uses less digits than its factorization.

87493998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10631.

The product of its digits is 3919104, while the sum is 57.

The square root of 87493998 is about 9353.8226410383. The cubic root of 87493998 is about 443.9418497824.

The spelling of 87493998 in words is "eighty-seven million, four hundred ninety-three thousand, nine hundred ninety-eight".