905039 has 4 divisors (see below), whose sum is σ = 907920. Its totient is φ = 902160.

The previous prime is 905011. The next prime is 905053. The reversal of 905039 is 930509.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-905039 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 904999 and 905017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905059) 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, 902 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (226980).

2⁹⁰⁵⁰³⁹ is an apocalyptic number.

905039 is a deficient number, since it is larger than the sum of its proper divisors (2881).

905039 is a wasteful number, since it uses less digits than its factorization.

905039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880.

The product of its (nonzero) digits is 1215, while the sum is 26.

The square root of 905039 is about 951.3353772461. The cubic root of 905039 is about 96.7287921430.

The spelling of 905039 in words is "nine hundred five thousand, thirty-nine".