903812 has 36 divisors (see below), whose sum is σ = 1967616. Its totient is φ = 355680.

The previous prime is 903803. The next prime is 903827. The reversal of 903812 is 218309.

It is a super-2 number, since 2×903812² = 1633752262688, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4637 + ... + 4827.

It is an arithmetic number, because the mean of its divisors is an integer number (54656).

2⁹⁰³⁸¹² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 903812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983808).

903812 is an abundant number, since it is smaller than the sum of its proper divisors (1063804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

903812 is a wasteful number, since it uses less digits than its factorization.

903812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 903812 is about 950.6902755367. The cubic root of 903812 is about 96.6850592562.

The spelling of 903812 in words is "nine hundred three thousand, eight hundred twelve".