674745 has 8 divisors (see below), whose sum is σ = 1079616. Its totient is φ = 359856.

The previous prime is 674741. The next prime is 674749. The reversal of 674745 is 547476.

It is an interprime number because it is at equal distance from previous prime (674741) and next prime (674749).

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

It is not a de Polignac number, because 674745 - 2² = 674741 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (674741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22477 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (134952).

2⁶⁷⁴⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

674745 is a deficient number, since it is larger than the sum of its proper divisors (404871).

674745 is a wasteful number, since it uses less digits than its factorization.

674745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44991.

The product of its digits is 23520, while the sum is 33.

The square root of 674745 is about 821.4286335404. The cubic root of 674745 is about 87.7094844658.

Adding to 674745 its reverse (547476), we get a palindrome (1222221).

The spelling of 674745 in words is "six hundred seventy-four thousand, seven hundred forty-five".