86851079 has 24 divisors (see below), whose sum is σ = 109626048. Its totient is φ = 68328960.

The previous prime is 86851073. The next prime is 86851081. The reversal of 86851079 is 97015868.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-86851079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86851073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32882 + ... + 35424.

It is an arithmetic number, because the mean of its divisors is an integer number (4567752).

Almost surely, 2^86851079 is an apocalyptic number.

86851079 is a deficient number, since it is larger than the sum of its proper divisors (22774969).

86851079 is a wasteful number, since it uses less digits than its factorization.

86851079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615 (or 2608 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 86851079 is about 9319.3926304239. The cubic root of 86851079 is about 442.8517917048.

The spelling of 86851079 in words is "eighty-six million, eight hundred fifty-one thousand, seventy-nine".