10903905 has 12 divisors (see below), whose sum is σ = 18900180. Its totient is φ = 5815392.

The previous prime is 10903903. The next prime is 10903939. The reversal of 10903905 is 50930901.

10903905 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7834401 + 3069504 = 2799^2 + 1752^2 .

It is not a de Polignac number, because 10903905 - 2¹ = 10903903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10903901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121110 + ... + 121199.

It is an arithmetic number, because the mean of its divisors is an integer number (1575015).

Almost surely, 2^10903905 is an apocalyptic number.

10903905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10903905 is a deficient number, since it is larger than the sum of its proper divisors (7996275).

10903905 is a wasteful number, since it uses less digits than its factorization.

10903905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242320 (or 242317 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 10903905 is about 3302.1061460831. The cubic root of 10903905 is about 221.7484977488.

The spelling of 10903905 in words is "ten million, nine hundred three thousand, nine hundred five".