739889 has 4 divisors (see below), whose sum is σ = 759924. Its totient is φ = 719856.

The previous prime is 739861. The next prime is 739909. The reversal of 739889 is 988937.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 87025 = 808^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 739889 - 2⁸ = 739633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (739829) 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, 9962 + ... + 10035.

It is an arithmetic number, because the mean of its divisors is an integer number (189981).

2⁷³⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

739889 is a deficient number, since it is larger than the sum of its proper divisors (20035).

739889 is a wasteful number, since it uses less digits than its factorization.

739889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20034.

The product of its digits is 108864, while the sum is 44.

The square root of 739889 is about 860.1680068452. The cubic root of 739889 is about 90.4458942181.

The spelling of 739889 in words is "seven hundred thirty-nine thousand, eight hundred eighty-nine".