86394899 has 2 divisors, whose sum is σ = 86394900. Its totient is φ = 86394898.

The previous prime is 86394851. The next prime is 86394911. The reversal of 86394899 is 99849368.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86394899 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86394809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43197449 + 43197450.

It is an arithmetic number, because the mean of its divisors is an integer number (43197450).

Almost surely, 2^86394899 is an apocalyptic number.

86394899 is a deficient number, since it is larger than the sum of its proper divisors (1).

86394899 is an equidigital number, since it uses as much as digits as its factorization.

86394899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 56.

The square root of 86394899 is about 9294.8856367359. The cubic root of 86394899 is about 442.0750795523.

The spelling of 86394899 in words is "eighty-six million, three hundred ninety-four thousand, eight hundred ninety-nine".