744736085 has 8 divisors (see below), whose sum is σ = 946253016. Its totient is φ = 560742400.

The previous prime is 744736073. The next prime is 744736087. The reversal of 744736085 is 580637447.

744736085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 429069796 + 315666289 = 20714^2 + 17767^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 744736085 - 2¹² = 744731989 is a prime.

It is a super-2 number, since 2×744736085² = 1109263672602254450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744736087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4380716 + ... + 4380885.

It is an arithmetic number, because the mean of its divisors is an integer number (118281627).

Almost surely, 2^744736085 is an apocalyptic number.

It is an amenable number.

744736085 is a deficient number, since it is larger than the sum of its proper divisors (201516931).

744736085 is a wasteful number, since it uses less digits than its factorization.

744736085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761623.

The product of its (nonzero) digits is 564480, while the sum is 44.

The square root of 744736085 is about 27289.8531509424. The cubic root of 744736085 is about 906.4297111065.

It can be divided in two parts, 7447360 and 85, that multiplied together give a square (633025600 = 25160²).

The spelling of 744736085 in words is "seven hundred forty-four million, seven hundred thirty-six thousand, eighty-five".