674158623 has 16 divisors (see below), whose sum is σ = 915140736. Its totient is φ = 441349920.

The previous prime is 674158609. The next prime is 674158663. The reversal of 674158623 is 326851476.

674158623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 674158623 - 2⁴ = 674158607 is a prime.

It is a super-2 number, since 2×674158623² = 908979697930512258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674158663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61465 + ... + 71597.

It is an arithmetic number, because the mean of its divisors is an integer number (57196296).

Almost surely, 2^674158623 is an apocalyptic number.

674158623 is a deficient number, since it is larger than the sum of its proper divisors (240982113).

674158623 is a wasteful number, since it uses less digits than its factorization.

674158623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10534.

The product of its digits is 241920, while the sum is 42.

The square root of 674158623 is about 25964.5647566063. The cubic root of 674158623 is about 876.8406956591.

The spelling of 674158623 in words is "six hundred seventy-four million, one hundred fifty-eight thousand, six hundred twenty-three".