677404369 has 2 divisors, whose sum is σ = 677404370. Its totient is φ = 677404368.

The previous prime is 677404363. The next prime is 677404379. The reversal of 677404369 is 963404776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540795025 + 136609344 = 23255^2 + 11688^2 .

It is a cyclic number.

It is not a de Polignac number, because 677404369 - 2³ = 677404361 is a prime.

It is a super-2 number, since 2×677404369² = 917753358280576322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (677404361) 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, 338702184 + 338702185.

It is an arithmetic number, because the mean of its divisors is an integer number (338702185).

Almost surely, 2^677404369 is an apocalyptic number.

It is an amenable number.

677404369 is a deficient number, since it is larger than the sum of its proper divisors (1).

677404369 is an equidigital number, since it uses as much as digits as its factorization.

677404369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 46.

The square root of 677404369 is about 26026.9930841040. The cubic root of 677404369 is about 878.2456305853.

The spelling of 677404369 in words is "six hundred seventy-seven million, four hundred four thousand, three hundred sixty-nine".