674127645 has 8 divisors (see below), whose sum is σ = 1078604256. Its totient is φ = 359534736.

The previous prime is 674127637. The next prime is 674127659. The reversal of 674127645 is 546721476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 674127645 - 2³ = 674127637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 674127597 and 674127606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22470907 + ... + 22470936.

It is an arithmetic number, because the mean of its divisors is an integer number (134825532).

Almost surely, 2^674127645 is an apocalyptic number.

It is an amenable number.

674127645 is a deficient number, since it is larger than the sum of its proper divisors (404476611).

674127645 is a wasteful number, since it uses less digits than its factorization.

674127645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44941851.

The product of its digits is 282240, while the sum is 42.

The square root of 674127645 is about 25963.9682059580. The cubic root of 674127645 is about 876.8272649985.

It can be divided in two parts, 67412 and 7645, that added together give a palindrome (75057).

The spelling of 674127645 in words is "six hundred seventy-four million, one hundred twenty-seven thousand, six hundred forty-five".