87931276 has 24 divisors (see below), whose sum is σ = 164623536. Its totient is φ = 40949760.

The previous prime is 87931273. The next prime is 87931303. The reversal of 87931276 is 67213978.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87931271) 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, 70 + ... + 13261.

It is an arithmetic number, because the mean of its divisors is an integer number (6859314).

Almost surely, 2^87931276 is an apocalyptic number.

It is an amenable number.

87931276 is a deficient number, since it is larger than the sum of its proper divisors (76692260).

87931276 is a wasteful number, since it uses less digits than its factorization.

87931276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13449 (or 13447 counting only the distinct ones).

The product of its digits is 127008, while the sum is 43.

The square root of 87931276 is about 9377.1678027003. The cubic root of 87931276 is about 444.6801994682.

The spelling of 87931276 in words is "eighty-seven million, nine hundred thirty-one thousand, two hundred seventy-six".