674449 has 2 divisors, whose sum is σ = 674450. Its totient is φ = 674448.

The previous prime is 674431. The next prime is 674461. The reversal of 674449 is 944476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 66049 = 780^2 + 257^2 .

It is a cyclic number.

It is not a de Polignac number, because 674449 - 2⁷ = 674321 is a prime.

674449 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (674419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337224 + 337225.

It is an arithmetic number, because the mean of its divisors is an integer number (337225).

2⁶⁷⁴⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

674449 is a deficient number, since it is larger than the sum of its proper divisors (1).

674449 is an equidigital number, since it uses as much as digits as its factorization.

674449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 674449 is about 821.2484398768. The cubic root of 674449 is about 87.6966570003.

The spelling of 674449 in words is "six hundred seventy-four thousand, four hundred forty-nine".