677284689 has 16 divisors (see below), whose sum is σ = 920399040. Its totient is φ = 442929600.

The previous prime is 677284687. The next prime is 677284717. The reversal of 677284689 is 986482776.

It is not a de Polignac number, because 677284689 - 2¹ = 677284687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677284681) 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, 22774 + ... + 43280.

It is an arithmetic number, because the mean of its divisors is an integer number (57524940).

Almost surely, 2^677284689 is an apocalyptic number.

It is an amenable number.

677284689 is a deficient number, since it is larger than the sum of its proper divisors (243114351).

677284689 is a wasteful number, since it uses less digits than its factorization.

677284689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20720.

The product of its digits is 8128512, while the sum is 57.

The square root of 677284689 is about 26024.6938310521. The cubic root of 677284689 is about 878.1939063703.

The spelling of 677284689 in words is "six hundred seventy-seven million, two hundred eighty-four thousand, six hundred eighty-nine".