677056579 has 2 divisors, whose sum is σ = 677056580. Its totient is φ = 677056578.

The previous prime is 677056561. The next prime is 677056613. The reversal of 677056579 is 975650776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 677056579 - 2¹³ = 677048387 is a prime.

It is a super-2 number, since 2×677056579² = 916811222334366482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (677056519) 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, 338528289 + 338528290.

It is an arithmetic number, because the mean of its divisors is an integer number (338528290).

Almost surely, 2^677056579 is an apocalyptic number.

677056579 is a deficient number, since it is larger than the sum of its proper divisors (1).

677056579 is an equidigital number, since it uses as much as digits as its factorization.

677056579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The square root of 677056579 is about 26020.3108936077. The cubic root of 677056579 is about 878.0953031737.

The spelling of 677056579 in words is "six hundred seventy-seven million, fifty-six thousand, five hundred seventy-nine".