677045249 has 2 divisors, whose sum is σ = 677045250. Its totient is φ = 677045248.

The previous prime is 677045209. The next prime is 677045309. The reversal of 677045249 is 942540776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343435024 + 333610225 = 18532^2 + 18265^2 .

It is a cyclic number.

It is not a de Polignac number, because 677045249 - 2²⁴ = 660268033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (677045209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338522624 + 338522625.

It is an arithmetic number, because the mean of its divisors is an integer number (338522625).

Almost surely, 2^677045249 is an apocalyptic number.

It is an amenable number.

677045249 is a deficient number, since it is larger than the sum of its proper divisors (1).

677045249 is an equidigital number, since it uses as much as digits as its factorization.

677045249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 423360, while the sum is 44.

The square root of 677045249 is about 26020.0931781575. The cubic root of 677045249 is about 878.0904050723.

The spelling of 677045249 in words is "six hundred seventy-seven million, forty-five thousand, two hundred forty-nine".