674045851 has 4 divisors (see below), whose sum is σ = 675489672. Its totient is φ = 672602032.

The previous prime is 674045837. The next prime is 674045893. The reversal of 674045851 is 158540476.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 674045851 - 2¹¹ = 674043803 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674045051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 721210 + ... + 722143.

It is an arithmetic number, because the mean of its divisors is an integer number (168872418).

Almost surely, 2^674045851 is an apocalyptic number.

674045851 is a deficient number, since it is larger than the sum of its proper divisors (1443821).

674045851 is a wasteful number, since it uses less digits than its factorization.

674045851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443820.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 674045851 is about 25962.3930137420. The cubic root of 674045851 is about 876.7918008394.

The spelling of 674045851 in words is "six hundred seventy-four million, forty-five thousand, eight hundred fifty-one".