674216688 has 20 divisors (see below), whose sum is σ = 1741726568. Its totient is φ = 224738880.

The previous prime is 674216677. The next prime is 674216707. The reversal of 674216688 is 886612476.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 14046181 = 674216688 / (6 + 7 + 4 + 2 + 1 + 6 + 6 + 8 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7023043 + ... + 7023138.

Almost surely, 2^674216688 is an apocalyptic number.

It is an amenable number.

674216688 is an abundant number, since it is smaller than the sum of its proper divisors (1067509880).

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

674216688 is a wasteful number, since it uses less digits than its factorization.

674216688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046192 (or 14046186 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 674216688 is about 25965.6828910776. The cubic root of 674216688 is about 876.8658689105.

The spelling of 674216688 in words is "six hundred seventy-four million, two hundred sixteen thousand, six hundred eighty-eight".