677767379 has 4 divisors (see below), whose sum is σ = 678208176. Its totient is φ = 677326584.

The previous prime is 677767361. The next prime is 677767417. The reversal of 677767379 is 973767776.

677767379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677767379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677767309) 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, 218084 + ... + 221169.

It is an arithmetic number, because the mean of its divisors is an integer number (169552044).

Almost surely, 2^677767379 is an apocalyptic number.

677767379 is a deficient number, since it is larger than the sum of its proper divisors (440797).

677767379 is a wasteful number, since it uses less digits than its factorization.

677767379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440796.

The product of its digits is 16336404, while the sum is 59.

The square root of 677767379 is about 26033.9658715302. The cubic root of 677767379 is about 878.4024817608.

The spelling of 677767379 in words is "six hundred seventy-seven million, seven hundred sixty-seven thousand, three hundred seventy-nine".