677978373 has 8 divisors (see below), whose sum is σ = 909958336. Its totient is φ = 448992000.

The previous prime is 677978351. The next prime is 677978407. The reversal of 677978373 is 373879776.

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

It is not a de Polignac number, because 677978373 - 2⁵ = 677978341 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 (677978303) 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, 747868 + ... + 748773.

It is an arithmetic number, because the mean of its divisors is an integer number (113744792).

Almost surely, 2^677978373 is an apocalyptic number.

It is an amenable number.

677978373 is a deficient number, since it is larger than the sum of its proper divisors (231979963).

677978373 is a wasteful number, since it uses less digits than its factorization.

677978373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496795.

The product of its digits is 9335088, while the sum is 57.

The square root of 677978373 is about 26038.0178393057. The cubic root of 677978373 is about 878.4936233677.

The spelling of 677978373 in words is "six hundred seventy-seven million, nine hundred seventy-eight thousand, three hundred seventy-three".