677979489 has 16 divisors (see below), whose sum is σ = 1038055680. Its totient is φ = 389270160.

The previous prime is 677979481. The next prime is 677979509. The reversal of 677979489 is 984979776.

It is not a de Polignac number, because 677979489 - 2³ = 677979481 is a prime.

It is a super-3 number, since 3×677979489³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (677979481) 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, 540027 + ... + 541280.

It is an arithmetic number, because the mean of its divisors is an integer number (64878480).

Almost surely, 2^677979489 is an apocalyptic number.

It is an amenable number.

677979489 is a deficient number, since it is larger than the sum of its proper divisors (360076191).

677979489 is a wasteful number, since it uses less digits than its factorization.

677979489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081340.

The product of its digits is 48009024, while the sum is 66.

The square root of 677979489 is about 26038.0392694995. The cubic root of 677979489 is about 878.4941053882.

It can be divided in two parts, 6779 and 79489, that added together give a palindrome (86268).

The spelling of 677979489 in words is "six hundred seventy-seven million, nine hundred seventy-nine thousand, four hundred eighty-nine".