677861770 has 8 divisors (see below), whose sum is σ = 1220151204. Its totient is φ = 271144704.

The previous prime is 677861749. The next prime is 677861771. The reversal of 677861770 is 77168776.

It can be written as a sum of positive squares in 2 ways, for example, as 669619129 + 8242641 = 25877^2 + 2871^2 .

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

It is not an unprimeable number, because it can be changed into a prime (677861771) 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, 33893079 + ... + 33893098.

Almost surely, 2^677861770 is an apocalyptic number.

677861770 is a deficient number, since it is larger than the sum of its proper divisors (542289434).

677861770 is a wasteful number, since it uses less digits than its factorization.

677861770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67786184.

The product of its (nonzero) digits is 691488, while the sum is 49.

The square root of 677861770 is about 26035.7786516939. The cubic root of 677861770 is about 878.4432575208.

The spelling of 677861770 in words is "six hundred seventy-seven million, eight hundred sixty-one thousand, seven hundred seventy".