674066789 has 8 divisors (see below), whose sum is σ = 744654720. Its totient is φ = 605030400.

The previous prime is 674066761. The next prime is 674066797. The reversal of 674066789 is 987660476.

It is a happy number.

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 674066789 - 2¹² = 674062693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 674066789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674060789) 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, 386972 + ... + 388709.

It is an arithmetic number, because the mean of its divisors is an integer number (93081840).

Almost surely, 2^674066789 is an apocalyptic number.

It is an amenable number.

674066789 is a deficient number, since it is larger than the sum of its proper divisors (70587931).

674066789 is a wasteful number, since it uses less digits than its factorization.

674066789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775771.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The square root of 674066789 is about 25962.7962477080. The cubic root of 674066789 is about 876.8008793893.

The spelling of 674066789 in words is "six hundred seventy-four million, sixty-six thousand, seven hundred eighty-nine".