677914453 has 2 divisors, whose sum is σ = 677914454. Its totient is φ = 677914452.

The previous prime is 677914451. The next prime is 677914463. The reversal of 677914453 is 354419776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668067409 + 9847044 = 25847^2 + 3138^2 .

It is a cyclic number.

It is not a de Polignac number, because 677914453 - 2¹ = 677914451 is a prime.

Together with 677914451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677914451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338957226 + 338957227.

It is an arithmetic number, because the mean of its divisors is an integer number (338957227).

Almost surely, 2^677914453 is an apocalyptic number.

It is an amenable number.

677914453 is a deficient number, since it is larger than the sum of its proper divisors (1).

677914453 is an equidigital number, since it uses as much as digits as its factorization.

677914453 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 677914453 is about 26036.7903743914. The cubic root of 677914453 is about 878.4660142878.

The spelling of 677914453 in words is "six hundred seventy-seven million, nine hundred fourteen thousand, four hundred fifty-three".