674182221 has 4 divisors (see below), whose sum is σ = 898909632. Its totient is φ = 449454812.

The previous prime is 674182213. The next prime is 674182253. The reversal of 674182221 is 122281476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 674182221 - 2³ = 674182213 is a prime.

It is a super-2 number, since 2×674182221² = 909043334224985682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674192221) 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, 112363701 + ... + 112363706.

It is an arithmetic number, because the mean of its divisors is an integer number (224727408).

Almost surely, 2^674182221 is an apocalyptic number.

It is an amenable number.

674182221 is a deficient number, since it is larger than the sum of its proper divisors (224727411).

674182221 is a wasteful number, since it uses less digits than its factorization.

674182221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224727410.

The product of its digits is 10752, while the sum is 33.

The square root of 674182221 is about 25965.0191796578. The cubic root of 674182221 is about 876.8509264093.

The spelling of 674182221 in words is "six hundred seventy-four million, one hundred eighty-two thousand, two hundred twenty-one".