744341761 has 4 divisors (see below), whose sum is σ = 745858224. Its totient is φ = 742825300.

The previous prime is 744341747. The next prime is 744341779. The reversal of 744341761 is 167143447.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 167143447 = 7019 ⋅23813.

It is a cyclic number.

It is not a de Polignac number, because 744341761 - 2²¹ = 742244609 is a prime.

It is a super-2 number, since 2×744341761² = 1108089314337162242, which contains 22 as substring.

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 744341761.

It is not an unprimeable number, because it can be changed into a prime (744344761) 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, 757495 + ... + 758476.

It is an arithmetic number, because the mean of its divisors is an integer number (186464556).

Almost surely, 2^744341761 is an apocalyptic number.

It is an amenable number.

744341761 is a deficient number, since it is larger than the sum of its proper divisors (1516463).

744341761 is a wasteful number, since it uses less digits than its factorization.

744341761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516462.

The product of its digits is 56448, while the sum is 37.

The square root of 744341761 is about 27282.6274577798. The cubic root of 744341761 is about 906.2697036001.

The spelling of 744341761 in words is "seven hundred forty-four million, three hundred forty-one thousand, seven hundred sixty-one".