674781885 has 24 divisors (see below), whose sum is σ = 1170902304. Its totient is φ = 359489760.

The previous prime is 674781871. The next prime is 674781893. The reversal of 674781885 is 588187476.

It is a happy number.

674781885 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 674781885 - 2⁵ = 674781853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35974 + ... + 51416.

It is an arithmetic number, because the mean of its divisors is an integer number (48787596).

Almost surely, 2^674781885 is an apocalyptic number.

It is an amenable number.

674781885 is a deficient number, since it is larger than the sum of its proper divisors (496120419).

674781885 is a wasteful number, since it uses less digits than its factorization.

674781885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16425 (or 16422 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 54.

The square root of 674781885 is about 25976.5641492481. The cubic root of 674781885 is about 877.1108265251.

The spelling of 674781885 in words is "six hundred seventy-four million, seven hundred eighty-one thousand, eight hundred eighty-five".