674063209 has 16 divisors (see below), whose sum is σ = 758609280. Its totient is φ = 595157760.

The previous prime is 674063207. The next prime is 674063233. The reversal of 674063209 is 902360476.

It is not a de Polignac number, because 674063209 - 2¹ = 674063207 is a prime.

It is a super-2 number, since 2×674063209² = 908722419454755362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674063207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23139 + ... + 43399.

It is an arithmetic number, because the mean of its divisors is an integer number (47413080).

Almost surely, 2^674063209 is an apocalyptic number.

It is an amenable number.

674063209 is a deficient number, since it is larger than the sum of its proper divisors (84546071).

674063209 is a wasteful number, since it uses less digits than its factorization.

674063209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20400.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 674063209 is about 25962.7273028085. The cubic root of 674063209 is about 876.7993271431.

The spelling of 674063209 in words is "six hundred seventy-four million, sixty-three thousand, two hundred nine".