674979720 has 64 divisors (see below), whose sum is σ = 2074343040. Its totient is φ = 175603200.

The previous prime is 674979719. The next prime is 674979743. The reversal of 674979720 is 27979476.

It is a happy number.

674979720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×674979720² = 911195244822556800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63676 + ... + 73515.

It is an arithmetic number, because the mean of its divisors is an integer number (32411610).

Almost surely, 2^674979720 is an apocalyptic number.

674979720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

674979720 is an abundant number, since it is smaller than the sum of its proper divisors (1399363320).

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

674979720 is a wasteful number, since it uses less digits than its factorization.

674979720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137246 (or 137242 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 674979720 is about 25980.3718218196. The cubic root of 674979720 is about 877.1965363270.

The spelling of 674979720 in words is "six hundred seventy-four million, nine hundred seventy-nine thousand, seven hundred twenty".