677800689 has 4 divisors (see below), whose sum is σ = 903734256. Its totient is φ = 451867124.

The previous prime is 677800663. The next prime is 677800703. The reversal of 677800689 is 986008776.

It is a happy number.

677800689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 677800689 - 2⁹ = 677800177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677800619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112966779 + ... + 112966784.

It is an arithmetic number, because the mean of its divisors is an integer number (225933564).

Almost surely, 2^677800689 is an apocalyptic number.

It is an amenable number.

677800689 is a deficient number, since it is larger than the sum of its proper divisors (225933567).

677800689 is a wasteful number, since it uses less digits than its factorization.

677800689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225933566.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 677800689 is about 26034.6056048483. The cubic root of 677800689 is about 878.4168717065.

The spelling of 677800689 in words is "six hundred seventy-seven million, eight hundred thousand, six hundred eighty-nine".