87226931 has 8 divisors (see below), whose sum is σ = 95230128. Its totient is φ = 79236000.

The previous prime is 87226921. The next prime is 87226943. The reversal of 87226931 is 13962278.

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 87226931 - 2²⁶ = 20118067 is a prime.

It is a super-2 number, since 2×87226931² = 15217074983357522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87226921) 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, 18341 + ... + 22601.

It is an arithmetic number, because the mean of its divisors is an integer number (11903766).

Almost surely, 2^87226931 is an apocalyptic number.

87226931 is a deficient number, since it is larger than the sum of its proper divisors (8003197).

87226931 is a wasteful number, since it uses less digits than its factorization.

87226931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6133.

The product of its digits is 36288, while the sum is 38.

The square root of 87226931 is about 9339.5359092409. The cubic root of 87226931 is about 443.4896928385.

The spelling of 87226931 in words is "eighty-seven million, two hundred twenty-six thousand, nine hundred thirty-one".