677149453 has 2 divisors, whose sum is σ = 677149454. Its totient is φ = 677149452.

The previous prime is 677149409. The next prime is 677149513. The reversal of 677149453 is 354941776.

677149453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 654234084 + 22915369 = 25578^2 + 4787^2 .

It is a cyclic number.

It is not a de Polignac number, because 677149453 - 2²⁵ = 643595021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677179453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338574726 + 338574727.

It is an arithmetic number, because the mean of its divisors is an integer number (338574727).

Almost surely, 2^677149453 is an apocalyptic number.

It is an amenable number.

677149453 is a deficient number, since it is larger than the sum of its proper divisors (1).

677149453 is an equidigital number, since it uses as much as digits as its factorization.

677149453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 677149453 is about 26022.0954767290. The cubic root of 677149453 is about 878.1354517113.

The spelling of 677149453 in words is "six hundred seventy-seven million, one hundred forty-nine thousand, four hundred fifty-three".