905481 has 6 divisors (see below), whose sum is σ = 1307930. Its totient is φ = 603648.

The previous prime is 905477. The next prime is 905491. The reversal of 905481 is 184509.

It can be written as a sum of positive squares in only one way, i.e., 810000 + 95481 = 900^2 + 309^2 .

It is not a de Polignac number, because 905481 - 2² = 905477 is a prime.

It is a super-2 number, since 2×905481² = 1639791682722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (905461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50296 + ... + 50313.

2⁹⁰⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

905481 is a deficient number, since it is larger than the sum of its proper divisors (402449).

905481 is a wasteful number, since it uses less digits than its factorization.

905481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100615 (or 100612 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 905481 is about 951.5676539269. The cubic root of 905481 is about 96.7445362778.

The spelling of 905481 in words is "nine hundred five thousand, four hundred eighty-one".