677126628 has 30 divisors (see below), whose sum is σ = 1770143606. Its totient is φ = 225708768.

The previous prime is 677126621. The next prime is 677126629. The reversal of 677126628 is 826621776.

677126628 is a `hidden beast` number, since 6 + 7 + 7 + 12 + 6 + 628 = 666.

It can be written as a sum of positive squares in only one way, i.e., 675584064 + 1542564 = 25992^2 + 1242^2 .

It is not an unprimeable number, because it can be changed into a prime (677126621) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1044625 + ... + 1045272.

Almost surely, 2^677126628 is an apocalyptic number.

It is an amenable number.

677126628 is an abundant number, since it is smaller than the sum of its proper divisors (1093016978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677126628 is a wasteful number, since it uses less digits than its factorization.

677126628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089913 (or 2089902 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 677126628 is about 26021.6569034333. The cubic root of 677126628 is about 878.1255850234.

The spelling of 677126628 in words is "six hundred seventy-seven million, one hundred twenty-six thousand, six hundred twenty-eight".