677356469 has 2 divisors, whose sum is σ = 677356470. Its totient is φ = 677356468.

The previous prime is 677356457. The next prime is 677356487. The reversal of 677356469 is 964653776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 621853969 + 55502500 = 24937^2 + 7450^2 .

It is a cyclic number.

It is not a de Polignac number, because 677356469 - 2⁴ = 677356453 is a prime.

It is a super-2 number, since 2×677356469² = 917623572192295922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677356469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677356409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338678234 + 338678235.

It is an arithmetic number, because the mean of its divisors is an integer number (338678235).

Almost surely, 2^677356469 is an apocalyptic number.

It is an amenable number.

677356469 is a deficient number, since it is larger than the sum of its proper divisors (1).

677356469 is an equidigital number, since it uses as much as digits as its factorization.

677356469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 53.

The square root of 677356469 is about 26026.0728693362. The cubic root of 677356469 is about 878.2249295293.

The spelling of 677356469 in words is "six hundred seventy-seven million, three hundred fifty-six thousand, four hundred sixty-nine".