87297792 has 72 divisors (see below), whose sum is σ = 233923536. Its totient is φ = 28901376.

The previous prime is 87297787. The next prime is 87297803. The reversal of 87297792 is 29779278.

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, 151008 + ... + 151584.

It is an arithmetic number, because the mean of its divisors is an integer number (3248938).

Almost surely, 2^87297792 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 87297792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116961768).

87297792 is an abundant number, since it is smaller than the sum of its proper divisors (146625744).

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

87297792 is a wasteful number, since it uses less digits than its factorization.

87297792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 779 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The square root of 87297792 is about 9343.3287430123. The cubic root of 87297792 is about 443.6097536831.

The spelling of 87297792 in words is "eighty-seven million, two hundred ninety-seven thousand, seven hundred ninety-two".