677444331 has 8 divisors (see below), whose sum is σ = 903887424. Its totient is φ = 451315400.

The previous prime is 677444329. The next prime is 677444363. The reversal of 677444331 is 133444776.

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

It is a cyclic number.

It is not a de Polignac number, because 677444331 - 2¹ = 677444329 is a prime.

It is a super-2 number, since 2×677444331² = 917861643208075122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 677444331.

It is not an unprimeable number, because it can be changed into a prime (677424331) 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, 73461 + ... + 82166.

It is an arithmetic number, because the mean of its divisors is an integer number (112985928).

Almost surely, 2^677444331 is an apocalyptic number.

677444331 is a deficient number, since it is larger than the sum of its proper divisors (226443093).

677444331 is a wasteful number, since it uses less digits than its factorization.

677444331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157081.

The product of its digits is 169344, while the sum is 39.

The square root of 677444331 is about 26027.7607757563. The cubic root of 677444331 is about 878.2629003105.

The spelling of 677444331 in words is "six hundred seventy-seven million, four hundred forty-four thousand, three hundred thirty-one".