744861 has 16 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 450240.

The previous prime is 744859. The next prime is 744893. The reversal of 744861 is 168447.

It is not a de Polignac number, because 744861 - 2¹ = 744859 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 744861.

It is not an unprimeable number, because it can be changed into a prime (744811) 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 15 ways as a sum of consecutive naturals, for example, 2635 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2⁷⁴⁴⁸⁶¹ is an apocalyptic number.

744861 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

744861 is a deficient number, since it is larger than the sum of its proper divisors (343779).

744861 is a wasteful number, since it uses less digits than its factorization.

744861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its digits is 5376, while the sum is 30.

The square root of 744861 is about 863.0533007874. The cubic root of 744861 is about 90.6480386927.

The spelling of 744861 in words is "seven hundred forty-four thousand, eight hundred sixty-one".