674544784 has 45 divisors (see below), whose sum is σ = 1346950899. Its totient is φ = 327247200.

The previous prime is 674544749. The next prime is 674544797. The reversal of 674544784 is 487445476.

The square root of 674544784 is 25972.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (3010560) is a multiple of the sum of its prime divisors (196).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4467109 + ... + 4467259.

Almost surely, 2^674544784 is an apocalyptic number.

674544784 is the 25972-nd square number.

It is an amenable number.

674544784 is a deficient number, since it is larger than the sum of its proper divisors (672406115).

674544784 is an equidigital number, since it uses as much as digits as its factorization.

674544784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 196 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 49.

The cubic root of 674544784 is about 877.0080830949.

Multiplying 674544784 by its sum of digits (49), we get a square (33052694416 = 181804²).

It can be divided in two parts, 6745 and 44784, that added together give a square (51529 = 227²).

The spelling of 674544784 in words is "six hundred seventy-four million, five hundred forty-four thousand, seven hundred eighty-four".