674494623 has 48 divisors (see below), whose sum is σ = 1123349760. Its totient is φ = 385689600.

The previous prime is 674494609. The next prime is 674494631. The reversal of 674494623 is 326494476.

It is a happy number.

It is not a de Polignac number, because 674494623 - 2⁴ = 674494607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674494633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 584415 + ... + 585567.

It is an arithmetic number, because the mean of its divisors is an integer number (23403120).

Almost surely, 2^674494623 is an apocalyptic number.

674494623 is a deficient number, since it is larger than the sum of its proper divisors (448855137).

674494623 is a wasteful number, since it uses less digits than its factorization.

674494623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1497 counting only the distinct ones).

The product of its digits is 870912, while the sum is 45.

The square root of 674494623 is about 25971.0343074742. The cubic root of 674494623 is about 876.9863436473.

The spelling of 674494623 in words is "six hundred seventy-four million, four hundred ninety-four thousand, six hundred twenty-three".