87297276 has 24 divisors (see below), whose sum is σ = 222211584. Its totient is φ = 26453680.

The previous prime is 87297257. The next prime is 87297289. The reversal of 87297276 is 67279278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330540 + ... + 330803.

It is an arithmetic number, because the mean of its divisors is an integer number (9258816).

Almost surely, 2^87297276 is an apocalyptic number.

It is an amenable number.

87297276 is an abundant number, since it is smaller than the sum of its proper divisors (134914308).

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

87297276 is a wasteful number, since it uses less digits than its factorization.

87297276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661361 (or 661359 counting only the distinct ones).

The product of its digits is 592704, while the sum is 48.

The square root of 87297276 is about 9343.3011296864. The cubic root of 87297276 is about 443.6088796515.

The spelling of 87297276 in words is "eighty-seven million, two hundred ninety-seven thousand, two hundred seventy-six".