87997004 has 24 divisors (see below), whose sum is σ = 155769600. Its totient is φ = 43495056.

The previous prime is 87997001. The next prime is 87997009. The reversal of 87997004 is 40079978.

It is not an unprimeable number, because it can be changed into a prime (87997001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180449 + ... + 180935.

It is an arithmetic number, because the mean of its divisors is an integer number (6490400).

Almost surely, 2^87997004 is an apocalyptic number.

It is an amenable number.

87997004 is a deficient number, since it is larger than the sum of its proper divisors (67772596).

87997004 is a wasteful number, since it uses less digits than its factorization.

87997004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 87997004 is about 9380.6718309511. The cubic root of 87997004 is about 444.7909702957.

The spelling of 87997004 in words is "eighty-seven million, nine hundred ninety-seven thousand, four".