743606749 has 4 divisors (see below), whose sum is σ = 750826336. Its totient is φ = 736387164.

The previous prime is 743606729. The next prime is 743606779. The reversal of 743606749 is 947606347.

743606749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 743606749 - 2⁷ = 743606621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 743606699 and 743606708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (743606729) 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, 3609639 + ... + 3609844.

It is an arithmetic number, because the mean of its divisors is an integer number (187706584).

Almost surely, 2^743606749 is an apocalyptic number.

It is an amenable number.

743606749 is a deficient number, since it is larger than the sum of its proper divisors (7219587).

743606749 is a wasteful number, since it uses less digits than its factorization.

743606749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219586.

The product of its (nonzero) digits is 762048, while the sum is 46.

The square root of 743606749 is about 27269.1538005857. The cubic root of 743606749 is about 905.9713019253.

The spelling of 743606749 in words is "seven hundred forty-three million, six hundred six thousand, seven hundred forty-nine".