87997832 has 64 divisors (see below), whose sum is σ = 185976000. Its totient is φ = 38755584.

The previous prime is 87997801. The next prime is 87997837. The reversal of 87997832 is 23879978.

It is not an unprimeable number, because it can be changed into a prime (87997837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491519 + ... + 491697.

It is an arithmetic number, because the mean of its divisors is an integer number (2905875).

Almost surely, 2^87997832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87997832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92988000).

87997832 is an abundant number, since it is smaller than the sum of its proper divisors (97978168).

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

87997832 is a wasteful number, since it uses less digits than its factorization.

87997832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 386 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The square root of 87997832 is about 9380.7159641469. The cubic root of 87997832 is about 444.7923653651.

The spelling of 87997832 in words is "eighty-seven million, nine hundred ninety-seven thousand, eight hundred thirty-two".