677115997 has 2 divisors, whose sum is σ = 677115998. Its totient is φ = 677115996.

The previous prime is 677115991. The next prime is 677116039. The reversal of 677115997 is 799511776.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 616727556 + 60388441 = 24834^2 + 7771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677115997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677115991) 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, 338557998 + 338557999.

It is an arithmetic number, because the mean of its divisors is an integer number (338557999).

Almost surely, 2^677115997 is an apocalyptic number.

It is an amenable number.

677115997 is a deficient number, since it is larger than the sum of its proper divisors (1).

677115997 is an equidigital number, since it uses as much as digits as its factorization.

677115997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 833490, while the sum is 52.

The square root of 677115997 is about 26021.4526304740. The cubic root of 677115997 is about 878.1209894271.

The spelling of 677115997 in words is "six hundred seventy-seven million, one hundred fifteen thousand, nine hundred ninety-seven".