677309831 has 8 divisors (see below), whose sum is σ = 740202624. Its totient is φ = 614636920.

The previous prime is 677309821. The next prime is 677309849. The reversal of 677309831 is 138903776.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677309831 is a prime.

It is a super-2 number, since 2×677309831² = 917497214338497122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677309821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48491 + ... + 60876.

It is an arithmetic number, because the mean of its divisors is an integer number (92525328).

Almost surely, 2^677309831 is an apocalyptic number.

677309831 is a deficient number, since it is larger than the sum of its proper divisors (62892793).

677309831 is a wasteful number, since it uses less digits than its factorization.

677309831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109941.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 677309831 is about 26025.1768677948. The cubic root of 677309831 is about 878.2047729371.

The spelling of 677309831 in words is "six hundred seventy-seven million, three hundred nine thousand, eight hundred thirty-one".