677727349 has 6 divisors (see below), whose sum is σ = 733870626. Its totient is φ = 625594320.

The previous prime is 677727317. The next prime is 677727353. The reversal of 677727349 is 943727776.

It can be written as a sum of positive squares in 3 ways, for example, as 26967249 + 650760100 = 5193^2 + 25510^2 .

It is not a de Polignac number, because 677727349 - 2⁵ = 677727317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677727296 and 677727305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677728349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2004942 + ... + 2005279.

It is an arithmetic number, because the mean of its divisors is an integer number (122311771).

Almost surely, 2^677727349 is an apocalyptic number.

It is an amenable number.

677727349 is a deficient number, since it is larger than the sum of its proper divisors (56143277).

677727349 is a wasteful number, since it uses less digits than its factorization.

677727349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010247 (or 4010234 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 52.

The square root of 677727349 is about 26033.1970568350. The cubic root of 677727349 is about 878.3851881461.

The spelling of 677727349 in words is "six hundred seventy-seven million, seven hundred twenty-seven thousand, three hundred forty-nine".