674395789 has 8 divisors (see below), whose sum is σ = 695122560. Its totient is φ = 653898336.

The previous prime is 674395769. The next prime is 674395801. The reversal of 674395789 is 987593476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 674395789 - 2⁹ = 674395277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674395759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51349 + ... + 63130.

It is an arithmetic number, because the mean of its divisors is an integer number (86890320).

Almost surely, 2^674395789 is an apocalyptic number.

It is an amenable number.

674395789 is a deficient number, since it is larger than the sum of its proper divisors (20726771).

674395789 is a wasteful number, since it uses less digits than its factorization.

674395789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114659.

The product of its digits is 11430720, while the sum is 58.

The square root of 674395789 is about 25969.1314641056. The cubic root of 674395789 is about 876.9435064873.

The spelling of 674395789 in words is "six hundred seventy-four million, three hundred ninety-five thousand, seven hundred eighty-nine".