86693899 has 2 divisors, whose sum is σ = 86693900. Its totient is φ = 86693898.

The previous prime is 86693813. The next prime is 86693909. The reversal of 86693899 is 99839668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86693899 - 2²¹ = 84596747 is a prime.

It is not a weakly prime, because it can be changed into another prime (86693809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43346949 + 43346950.

It is an arithmetic number, because the mean of its divisors is an integer number (43346950).

Almost surely, 2^86693899 is an apocalyptic number.

86693899 is a deficient number, since it is larger than the sum of its proper divisors (1).

86693899 is an equidigital number, since it uses as much as digits as its factorization.

86693899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 58.

The square root of 86693899 is about 9310.9558585572. The cubic root of 86693899 is about 442.5844778970.

The spelling of 86693899 in words is "eighty-six million, six hundred ninety-three thousand, eight hundred ninety-nine".