677208697 has 16 divisors (see below), whose sum is σ = 778648320. Its totient is φ = 582498000.

The previous prime is 677208691. The next prime is 677208709. The reversal of 677208697 is 796802776.

It is a happy number.

677208697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 677208697 - 2⁷ = 677208569 is a prime.

It is a super-2 number, since 2×677208697² = 917223238584875618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677208691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218118 + ... + 221200.

It is an arithmetic number, because the mean of its divisors is an integer number (48665520).

Almost surely, 2^677208697 is an apocalyptic number.

It is an amenable number.

677208697 is a deficient number, since it is larger than the sum of its proper divisors (101439623).

677208697 is a wasteful number, since it uses less digits than its factorization.

677208697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The square root of 677208697 is about 26023.2337921328. The cubic root of 677208697 is about 878.1610604054.

The spelling of 677208697 in words is "six hundred seventy-seven million, two hundred eight thousand, six hundred ninety-seven".