677988354 has 16 divisors (see below), whose sum is σ = 1356727680. Its totient is φ = 225870960.

The previous prime is 677988331. The next prime is 677988371. The reversal of 677988354 is 453889776.

It is a junction number, because it is equal to n+sod(n) for n = 677988294 and 677988303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19194 + ... + 41525.

It is an arithmetic number, because the mean of its divisors is an integer number (84795480).

Almost surely, 2^677988354 is an apocalyptic number.

677988354 is an abundant number, since it is smaller than the sum of its proper divisors (678739326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677988354 is a wasteful number, since it uses less digits than its factorization.

677988354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62585.

The product of its digits is 10160640, while the sum is 57.

The square root of 677988354 is about 26038.2095006550. The cubic root of 677988354 is about 878.4979343223.

The spelling of 677988354 in words is "six hundred seventy-seven million, nine hundred eighty-eight thousand, three hundred fifty-four".