86130939 has 4 divisors (see below), whose sum is σ = 114841256. Its totient is φ = 57420624.

The previous prime is 86130937. The next prime is 86130943. The reversal of 86130939 is 93903168.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86130939 - 2¹ = 86130937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86130897 and 86130906.

It is not an unprimeable number, because it can be changed into a prime (86130937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14355154 + ... + 14355159.

It is an arithmetic number, because the mean of its divisors is an integer number (28710314).

Almost surely, 2^86130939 is an apocalyptic number.

86130939 is a deficient number, since it is larger than the sum of its proper divisors (28710317).

86130939 is a wasteful number, since it uses less digits than its factorization.

86130939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28710316.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 86130939 is about 9280.6755680823. The cubic root of 86130939 is about 441.6244002431.

The spelling of 86130939 in words is "eighty-six million, one hundred thirty thousand, nine hundred thirty-nine".