674666453 has 4 divisors (see below), whose sum is σ = 675436620. Its totient is φ = 673896288.

The previous prime is 674666449. The next prime is 674666477. The reversal of 674666453 is 354666476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 312829969 + 361836484 = 17687^2 + 19022^2 .

It is a cyclic number.

It is not a de Polignac number, because 674666453 - 2² = 674666449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 674666398 and 674666407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674666753) 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, 383768 + ... + 385521.

It is an arithmetic number, because the mean of its divisors is an integer number (168859155).

Almost surely, 2^674666453 is an apocalyptic number.

It is an amenable number.

674666453 is a deficient number, since it is larger than the sum of its proper divisors (770167).

674666453 is an equidigital number, since it uses as much as digits as its factorization.

674666453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770166.

The product of its digits is 2177280, while the sum is 47.

The square root of 674666453 is about 25974.3422053379. The cubic root of 674666453 is about 877.0608091625.

The spelling of 674666453 in words is "six hundred seventy-four million, six hundred sixty-six thousand, four hundred fifty-three".