86157907 has 8 divisors (see below), whose sum is σ = 94212720. Its totient is φ = 78140160.

The previous prime is 86157893. The next prime is 86157919. The reversal of 86157907 is 70975168.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86157907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86157937) 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, 4282 + ... + 13807.

It is an arithmetic number, because the mean of its divisors is an integer number (11776590).

Almost surely, 2^86157907 is an apocalyptic number.

86157907 is a deficient number, since it is larger than the sum of its proper divisors (8054813).

86157907 is a wasteful number, since it uses less digits than its factorization.

86157907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18533.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 86157907 is about 9282.1283658437. The cubic root of 86157907 is about 441.6704869888.

The spelling of 86157907 in words is "eighty-six million, one hundred fifty-seven thousand, nine hundred seven".