744475853 has 12 divisors (see below), whose sum is σ = 840429660. Its totient is φ = 658500480.

The previous prime is 744475829. The next prime is 744475859. The reversal of 744475853 is 358574447.

It can be written as a sum of positive squares in 2 ways, for example, as 563492644 + 180983209 = 23738^2 + 13453^2 .

It is a de Polignac number, because none of the positive numbers 2^k-744475853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 744475798 and 744475807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744475859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78668 + ... + 87621.

It is an arithmetic number, because the mean of its divisors is an integer number (70035805).

Almost surely, 2^744475853 is an apocalyptic number.

It is an amenable number.

744475853 is a deficient number, since it is larger than the sum of its proper divisors (95953807).

744475853 is a wasteful number, since it uses less digits than its factorization.

744475853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166348 (or 166337 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 47.

The square root of 744475853 is about 27285.0848083710. The cubic root of 744475853 is about 906.3241213541.

The spelling of 744475853 in words is "seven hundred forty-four million, four hundred seventy-five thousand, eight hundred fifty-three".