744581743 has 4 divisors (see below), whose sum is σ = 752947920. Its totient is φ = 736215568.

The previous prime is 744581741. The next prime is 744581753. The reversal of 744581743 is 347185447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347185447 = 7 ⋅49597921.

It is a cyclic number.

It is not a de Polignac number, because 744581743 - 2¹ = 744581741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 744581743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744581741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4182955 + ... + 4183132.

It is an arithmetic number, because the mean of its divisors is an integer number (188236980).

Almost surely, 2^744581743 is an apocalyptic number.

744581743 is a deficient number, since it is larger than the sum of its proper divisors (8366177).

744581743 is an equidigital number, since it uses as much as digits as its factorization.

744581743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8366176.

The product of its digits is 376320, while the sum is 43.

The square root of 744581743 is about 27287.0251768125. The cubic root of 744581743 is about 906.3670894419.

The spelling of 744581743 in words is "seven hundred forty-four million, five hundred eighty-one thousand, seven hundred forty-three".