839045 has 4 divisors (see below), whose sum is σ = 1006860. Its totient is φ = 671232.

The previous prime is 839029. The next prime is 839051. The reversal of 839045 is 540938.

839045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 368449 + 470596 = 607^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 839045 - 2⁴ = 839029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 838999 and 839017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83900 + ... + 83909.

It is an arithmetic number, because the mean of its divisors is an integer number (251715).

2⁸³⁹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

839045 is a deficient number, since it is larger than the sum of its proper divisors (167815).

839045 is a wasteful number, since it uses less digits than its factorization.

839045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167814.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 839045 is about 915.9939956135. The cubic root of 839045 is about 94.3181089219.

The spelling of 839045 in words is "eight hundred thirty-nine thousand, forty-five".