674364823 has 12 divisors (see below), whose sum is σ = 784848960. Its totient is φ = 576994880.

The previous prime is 674364809. The next prime is 674364833. The reversal of 674364823 is 328463476.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-674364823 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 674364823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674364833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161863 + ... + 165976.

It is an arithmetic number, because the mean of its divisors is an integer number (65404080).

Almost surely, 2^674364823 is an apocalyptic number.

674364823 is a deficient number, since it is larger than the sum of its proper divisors (110484137).

674364823 is a wasteful number, since it uses less digits than its factorization.

674364823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327878 (or 327867 counting only the distinct ones).

The product of its digits is 580608, while the sum is 43.

The square root of 674364823 is about 25968.5352494129. The cubic root of 674364823 is about 876.9300841772.

The spelling of 674364823 in words is "six hundred seventy-four million, three hundred sixty-four thousand, eight hundred twenty-three".