744879 has 4 divisors (see below), whose sum is σ = 993176. Its totient is φ = 496584.

The previous prime is 744859. The next prime is 744893. The reversal of 744879 is 978447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978447 = 3 ⋅326149.

It is not a de Polignac number, because 744879 - 2¹⁷ = 613807 is a prime.

It is a D-number.

It is a Duffinian number.

744879 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744829) 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, 124144 + ... + 124149.

It is an arithmetic number, because the mean of its divisors is an integer number (248294).

2⁷⁴⁴⁸⁷⁹ is an apocalyptic number.

744879 is a deficient number, since it is larger than the sum of its proper divisors (248297).

744879 is a wasteful number, since it uses less digits than its factorization.

744879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248296.

The product of its digits is 56448, while the sum is 39.

The square root of 744879 is about 863.0637288173. The cubic root of 744879 is about 90.6487688744.

The spelling of 744879 in words is "seven hundred forty-four thousand, eight hundred seventy-nine".