677356453 has 2 divisors, whose sum is σ = 677356454. Its totient is φ = 677356452.

The previous prime is 677356429. The next prime is 677356457. The reversal of 677356453 is 354653776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649128484 + 28227969 = 25478^2 + 5313^2 .

It is a cyclic number.

It is not a de Polignac number, because 677356453 - 2⁹ = 677355941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677356457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338678226 + 338678227.

It is an arithmetic number, because the mean of its divisors is an integer number (338678227).

Almost surely, 2^677356453 is an apocalyptic number.

It is an amenable number.

677356453 is a deficient number, since it is larger than the sum of its proper divisors (1).

677356453 is an equidigital number, since it uses as much as digits as its factorization.

677356453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 46.

The square root of 677356453 is about 26026.0725619522. The cubic root of 677356453 is about 878.2249226144.

The spelling of 677356453 in words is "six hundred seventy-seven million, three hundred fifty-six thousand, four hundred fifty-three".