87246931 has 8 divisors (see below), whose sum is σ = 89432784. Its totient is φ = 85087200.

The previous prime is 87246923. The next prime is 87246953. The reversal of 87246931 is 13964278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87246931 - 2³ = 87246923 is a prime.

It is a super-2 number, since 2×87246931² = 15224053937837522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87246631) 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, 321 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (11179098).

Almost surely, 2^87246931 is an apocalyptic number.

87246931 is a deficient number, since it is larger than the sum of its proper divisors (2185853).

87246931 is a wasteful number, since it uses less digits than its factorization.

87246931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13061.

The product of its digits is 72576, while the sum is 40.

The square root of 87246931 is about 9340.6065648865. The cubic root of 87246931 is about 443.5235857197.

The spelling of 87246931 in words is "eighty-seven million, two hundred forty-six thousand, nine hundred thirty-one".