677949472 has 72 divisors (see below), whose sum is σ = 1444424940. Its totient is φ = 312829440.

The previous prime is 677949463. The next prime is 677949487. The reversal of 677949472 is 274949776.

It can be written as a sum of positive squares in 2 ways, for example, as 677873296 + 76176 = 26036^2 + 276^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 490222 + ... + 491602.

Almost surely, 2^677949472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677949472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722212470).

677949472 is an abundant number, since it is smaller than the sum of its proper divisors (766475468).

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

677949472 is a wasteful number, since it uses less digits than its factorization.

677949472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1435 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 55.

The square root of 677949472 is about 26037.4628564305. The cubic root of 677949472 is about 878.4811403221.

The spelling of 677949472 in words is "six hundred seventy-seven million, nine hundred forty-nine thousand, four hundred seventy-two".