677725361 has 2 divisors, whose sum is σ = 677725362. Its totient is φ = 677725360.

The previous prime is 677725343. The next prime is 677725393. The reversal of 677725361 is 163527776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 455566336 + 222159025 = 21344^2 + 14905^2 .

It is a cyclic number.

It is not a de Polignac number, because 677725361 - 2²⁶ = 610616497 is a prime.

It is not a weakly prime, because it can be changed into another prime (677725261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338862680 + 338862681.

It is an arithmetic number, because the mean of its divisors is an integer number (338862681).

Almost surely, 2^677725361 is an apocalyptic number.

It is an amenable number.

677725361 is a deficient number, since it is larger than the sum of its proper divisors (1).

677725361 is an equidigital number, since it uses as much as digits as its factorization.

677725361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 44.

The square root of 677725361 is about 26033.1588747889. The cubic root of 677725361 is about 878.3843292799.

The spelling of 677725361 in words is "six hundred seventy-seven million, seven hundred twenty-five thousand, three hundred sixty-one".