676937557 has 4 divisors (see below), whose sum is σ = 688034956. Its totient is φ = 665840160.

The previous prime is 676937549. The next prime is 676937581. The reversal of 676937557 is 755739676.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59613841 + 617323716 = 7721^2 + 24846^2 .

It is a cyclic number.

It is not a de Polignac number, because 676937557 - 2³ = 676937549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 676937498 and 676937507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676937537) 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, 5548608 + ... + 5548729.

It is an arithmetic number, because the mean of its divisors is an integer number (172008739).

Almost surely, 2^676937557 is an apocalyptic number.

It is an amenable number.

676937557 is a deficient number, since it is larger than the sum of its proper divisors (11097399).

676937557 is a wasteful number, since it uses less digits than its factorization.

676937557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11097398.

The product of its digits is 8334900, while the sum is 55.

The square root of 676937557 is about 26018.0236951233. The cubic root of 676937557 is about 878.0438457391.

The spelling of 676937557 in words is "six hundred seventy-six million, nine hundred thirty-seven thousand, five hundred fifty-seven".