677130957 has 12 divisors (see below), whose sum is σ = 989068860. Its totient is φ = 446347968.

The previous prime is 677130953. The next prime is 677130973. The reversal of 677130957 is 759031776.

It can be written as a sum of positive squares in 2 ways, for example, as 65755881 + 611375076 = 8109^2 + 24726^2 .

It is not a de Polignac number, because 677130957 - 2² = 677130953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677130953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421878 + ... + 423479.

It is an arithmetic number, because the mean of its divisors is an integer number (82422405).

Almost surely, 2^677130957 is an apocalyptic number.

It is an amenable number.

677130957 is a deficient number, since it is larger than the sum of its proper divisors (311937903).

677130957 is a wasteful number, since it uses less digits than its factorization.

677130957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845452 (or 845449 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The square root of 677130957 is about 26021.7400840144. The cubic root of 677130957 is about 878.1274563610.

The spelling of 677130957 in words is "six hundred seventy-seven million, one hundred thirty thousand, nine hundred fifty-seven".