744734747 has 4 divisors (see below), whose sum is σ = 758786400. Its totient is φ = 730683096.

The previous prime is 744734743. The next prime is 744734777. The reversal of 744734747 is 747437447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747437447 = 19 ⋅39338813.

It is a cyclic number.

It is not a de Polignac number, because 744734747 - 2² = 744734743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744734743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7025747 + ... + 7025852.

It is an arithmetic number, because the mean of its divisors is an integer number (189696600).

Almost surely, 2^744734747 is an apocalyptic number.

744734747 is a deficient number, since it is larger than the sum of its proper divisors (14051653).

744734747 is a wasteful number, since it uses less digits than its factorization.

744734747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14051652.

The product of its digits is 1843968, while the sum is 47.

The square root of 744734747 is about 27289.8286363253. The cubic root of 744734747 is about 906.4291682728.

The spelling of 744734747 in words is "seven hundred forty-four million, seven hundred thirty-four thousand, seven hundred forty-seven".