677776309 has 8 divisors (see below), whose sum is σ = 774861440. Its totient is φ = 580756176.

The previous prime is 677776301. The next prime is 677776327. The reversal of 677776309 is 903677776.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 677776309 - 2³ = 677776301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677776301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8647 + ... + 37819.

It is an arithmetic number, because the mean of its divisors is an integer number (96857680).

Almost surely, 2^677776309 is an apocalyptic number.

It is an amenable number.

677776309 is a deficient number, since it is larger than the sum of its proper divisors (97085131).

677776309 is a wasteful number, since it uses less digits than its factorization.

677776309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32499.

The product of its (nonzero) digits is 2333772, while the sum is 52.

The square root of 677776309 is about 26034.1373776816. The cubic root of 677776309 is about 878.4063395739.

The spelling of 677776309 in words is "six hundred seventy-seven million, seven hundred seventy-six thousand, three hundred nine".