86636371 has 4 divisors (see below), whose sum is σ = 91196200. Its totient is φ = 82076544.

The previous prime is 86636353. The next prime is 86636383. The reversal of 86636371 is 17363668.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86636371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86636171) 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, 2279886 + ... + 2279923.

It is an arithmetic number, because the mean of its divisors is an integer number (22799050).

Almost surely, 2^86636371 is an apocalyptic number.

86636371 is a deficient number, since it is larger than the sum of its proper divisors (4559829).

86636371 is a wasteful number, since it uses less digits than its factorization.

86636371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559828.

The product of its digits is 108864, while the sum is 40.

The square root of 86636371 is about 9307.8660819760. The cubic root of 86636371 is about 442.4865600736.

The spelling of 86636371 in words is "eighty-six million, six hundred thirty-six thousand, three hundred seventy-one".