744641 has 2 divisors, whose sum is σ = 744642. Its totient is φ = 744640.

The previous prime is 744637. The next prime is 744649. The reversal of 744641 is 146447.

744641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 5041 = 860^2 + 71^2 .

It is a cyclic number.

It is not a de Polignac number, because 744641 - 2² = 744637 is a prime.

It is a super-3 number, since 3×744641³ = 1238688453233300163, which contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 744641.

It is not a weakly prime, because it can be changed into another prime (744649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372320 + 372321.

It is an arithmetic number, because the mean of its divisors is an integer number (372321).

2⁷⁴⁴⁶⁴¹ is an apocalyptic number.

It is an amenable number.

744641 is a deficient number, since it is larger than the sum of its proper divisors (1).

744641 is an equidigital number, since it uses as much as digits as its factorization.

744641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 744641 is about 862.9258369060. The cubic root of 744641 is about 90.6391132994.

The spelling of 744641 in words is "seven hundred forty-four thousand, six hundred forty-one".