905049 has 12 divisors (see below), whose sum is σ = 1316016. Its totient is φ = 599352.

The previous prime is 905011. The next prime is 905053. The reversal of 905049 is 940509.

It is a happy number.

It is not a de Polignac number, because 905049 - 2⁸ = 904793 is a prime.

It is a super-2 number, since 2×905049² = 1638227384802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (905059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1822 + ... + 2264.

It is an arithmetic number, because the mean of its divisors is an integer number (109668).

2⁹⁰⁵⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

905049 is a deficient number, since it is larger than the sum of its proper divisors (410967).

905049 is a wasteful number, since it uses less digits than its factorization.

905049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 905049 is about 951.3406330017. The cubic root of 905049 is about 96.7291484018.

The spelling of 905049 in words is "nine hundred five thousand, forty-nine".