744992685 has 12 divisors (see below), whose sum is σ = 1291320732. Its totient is φ = 397329408.

The previous prime is 744992663. The next prime is 744992693. The reversal of 744992685 is 586299447.

744992685 is a `hidden beast` number, since 74 + 499 + 2 + 6 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 462551049 + 282441636 = 21507^2 + 16806^2 .

It is not a de Polignac number, because 744992685 - 2⁵ = 744992653 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8277652 + ... + 8277741.

It is an arithmetic number, because the mean of its divisors is an integer number (107610061).

Almost surely, 2^744992685 is an apocalyptic number.

It is an amenable number.

744992685 is a deficient number, since it is larger than the sum of its proper divisors (546328047).

744992685 is a wasteful number, since it uses less digits than its factorization.

744992685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16555404 (or 16555401 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 744992685 is about 27294.5541271514. The cubic root of 744992685 is about 906.5338030843.

The spelling of 744992685 in words is "seven hundred forty-four million, nine hundred ninety-two thousand, six hundred eighty-five".