86107931 has 32 divisors (see below), whose sum is σ = 111498240. Its totient is φ = 64665216.

The previous prime is 86107919. The next prime is 86107937. The reversal of 86107931 is 13970168.

It is not a de Polignac number, because 86107931 - 2¹⁰ = 86106907 is a prime.

It is a super-2 number, since 2×86107931² = 14829151562201522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86107891 and 86107900.

It is not an unprimeable number, because it can be changed into a prime (86107937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176570 + ... + 177056.

It is an arithmetic number, because the mean of its divisors is an integer number (3484320).

Almost surely, 2^86107931 is an apocalyptic number.

86107931 is a deficient number, since it is larger than the sum of its proper divisors (25390309).

86107931 is a wasteful number, since it uses less digits than its factorization.

86107931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 86107931 is about 9279.4359203564. The cubic root of 86107931 is about 441.5850733021.

The spelling of 86107931 in words is "eighty-six million, one hundred seven thousand, nine hundred thirty-one".