677343599 has 4 divisors (see below), whose sum is σ = 678163464. Its totient is φ = 676523736.

The previous prime is 677343593. The next prime is 677343607. The reversal of 677343599 is 995343776.

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

It is a cyclic number.

It is not a de Polignac number, because 677343599 - 2²⁰ = 676295023 is a prime.

It is a super-2 number, since 2×677343599² = 917588702212545602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 677343599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677343593) 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, 408692 + ... + 410345.

It is an arithmetic number, because the mean of its divisors is an integer number (169540866).

Almost surely, 2^677343599 is an apocalyptic number.

677343599 is a deficient number, since it is larger than the sum of its proper divisors (819865).

677343599 is an equidigital number, since it uses as much as digits as its factorization.

677343599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819864.

The product of its digits is 4286520, while the sum is 53.

The square root of 677343599 is about 26025.8256161068. The cubic root of 677343599 is about 878.2193673047.

The spelling of 677343599 in words is "six hundred seventy-seven million, three hundred forty-three thousand, five hundred ninety-nine".