744729077 has 4 divisors (see below), whose sum is σ = 770409420. Its totient is φ = 719048736.

The previous prime is 744729061. The next prime is 744729079. The reversal of 744729077 is 770927447.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770927447 = 491 ⋅1570117.

It can be written as a sum of positive squares in 2 ways, for example, as 598585156 + 146143921 = 24466^2 + 12089^2 .

It is not a de Polignac number, because 744729077 - 2⁴ = 744729061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744729079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12840128 + ... + 12840185.

It is an arithmetic number, because the mean of its divisors is an integer number (192602355).

Almost surely, 2^744729077 is an apocalyptic number.

It is an amenable number.

744729077 is a deficient number, since it is larger than the sum of its proper divisors (25680343).

744729077 is a wasteful number, since it uses less digits than its factorization.

744729077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25680342.

The product of its (nonzero) digits is 691488, while the sum is 47.

The square root of 744729077 is about 27289.7247512686. The cubic root of 744729077 is about 906.4268679162.

The spelling of 744729077 in words is "seven hundred forty-four million, seven hundred twenty-nine thousand, seventy-seven".