86836913 has 2 divisors, whose sum is σ = 86836914. Its totient is φ = 86836912.

The previous prime is 86836907. The next prime is 86836943. The reversal of 86836913 is 31963868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79263409 + 7573504 = 8903^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 86836913 - 2⁸ = 86836657 is a prime.

It is not a weakly prime, because it can be changed into another prime (86836903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43418456 + 43418457.

It is an arithmetic number, because the mean of its divisors is an integer number (43418457).

Almost surely, 2^86836913 is an apocalyptic number.

It is an amenable number.

86836913 is a deficient number, since it is larger than the sum of its proper divisors (1).

86836913 is an equidigital number, since it uses as much as digits as its factorization.

86836913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 44.

The square root of 86836913 is about 9318.6325713594. The cubic root of 86836913 is about 442.8277130188.

The spelling of 86836913 in words is "eighty-six million, eight hundred thirty-six thousand, nine hundred thirteen".