677514857 has 2 divisors, whose sum is σ = 677514858. Its totient is φ = 677514856.

The previous prime is 677514829. The next prime is 677514913. The reversal of 677514857 is 758415776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 561500416 + 116014441 = 23696^2 + 10771^2 .

It is a cyclic number.

It is not a de Polignac number, because 677514857 - 2⁶ = 677514793 is a prime.

It is not a weakly prime, because it can be changed into another prime (677514757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338757428 + 338757429.

It is an arithmetic number, because the mean of its divisors is an integer number (338757429).

Almost surely, 2^677514857 is an apocalyptic number.

It is an amenable number.

677514857 is a deficient number, since it is larger than the sum of its proper divisors (1).

677514857 is an equidigital number, since it uses as much as digits as its factorization.

677514857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1646400, while the sum is 50.

The square root of 677514857 is about 26029.1155631535. The cubic root of 677514857 is about 878.2933767236.

The spelling of 677514857 in words is "six hundred seventy-seven million, five hundred fourteen thousand, eight hundred fifty-seven".