677806577 has 4 divisors (see below), whose sum is σ = 774636096. Its totient is φ = 580977060.

The previous prime is 677806567. The next prime is 677806583. The reversal of 677806577 is 775608776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677806577 - 2⁸ = 677806321 is a prime.

It is a super-4 number, since 4×677806577⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677806517) 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 in 3 ways as a sum of consecutive naturals, for example, 48414749 + ... + 48414762.

It is an arithmetic number, because the mean of its divisors is an integer number (193659024).

Almost surely, 2^677806577 is an apocalyptic number.

It is an amenable number.

677806577 is a deficient number, since it is larger than the sum of its proper divisors (96829519).

677806577 is an equidigital number, since it uses as much as digits as its factorization.

677806577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96829518.

The product of its (nonzero) digits is 3457440, while the sum is 53.

The square root of 677806577 is about 26034.7186848639. The cubic root of 677806577 is about 878.4194152780.

The spelling of 677806577 in words is "six hundred seventy-seven million, eight hundred six thousand, five hundred seventy-seven".