677899199 has 2 divisors, whose sum is σ = 677899200. Its totient is φ = 677899198.

The previous prime is 677899181. The next prime is 677899213. The reversal of 677899199 is 991998776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677899199 - 2²⁴ = 661121983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677899139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338949599 + 338949600.

It is an arithmetic number, because the mean of its divisors is an integer number (338949600).

Almost surely, 2^677899199 is an apocalyptic number.

677899199 is a deficient number, since it is larger than the sum of its proper divisors (1).

677899199 is an equidigital number, since it uses as much as digits as its factorization.

677899199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15431472, while the sum is 65.

The square root of 677899199 is about 26036.4974410922. The cubic root of 677899199 is about 878.4594253439.

The spelling of 677899199 in words is "six hundred seventy-seven million, eight hundred ninety-nine thousand, one hundred ninety-nine".