10903981 has 8 divisors (see below), whose sum is σ = 11937024. Its totient is φ = 9877920.

The previous prime is 10903979. The next prime is 10903993. The reversal of 10903981 is 18930901.

10903981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10903981 - 2¹ = 10903979 is a prime.

It is a super-2 number, since 2×10903981² = 237793603296722, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1860 + ... + 5026.

It is an arithmetic number, because the mean of its divisors is an integer number (1492128).

Almost surely, 2^10903981 is an apocalyptic number.

10903981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10903981 is a deficient number, since it is larger than the sum of its proper divisors (1033043).

10903981 is a wasteful number, since it uses less digits than its factorization.

10903981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10903981 is about 3302.1176538700. The cubic root of 10903981 is about 221.7490129418.

The spelling of 10903981 in words is "ten million, nine hundred three thousand, nine hundred eighty-one".