749039 has 4 divisors (see below), whose sum is σ = 765024. Its totient is φ = 733056.

The previous prime is 749027. The next prime is 749051. The reversal of 749039 is 930947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930947 = 919 ⋅1013.

It is an interprime number because it is at equal distance from previous prime (749027) and next prime (749051).

It is a cyclic number.

It is not a de Polignac number, because 749039 - 2¹⁶ = 683503 is a prime.

It is a super-2 number, since 2×749039² = 1122118847042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 748996 and 749014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749069) 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, 7922 + ... + 8015.

It is an arithmetic number, because the mean of its divisors is an integer number (191256).

2⁷⁴⁹⁰³⁹ is an apocalyptic number.

749039 is a deficient number, since it is larger than the sum of its proper divisors (15985).

749039 is a wasteful number, since it uses less digits than its factorization.

749039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15984.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 749039 is about 865.4703923301. The cubic root of 749039 is about 90.8172074357.

The spelling of 749039 in words is "seven hundred forty-nine thousand, thirty-nine".