10903987 has 4 divisors (see below), whose sum is σ = 11545416. Its totient is φ = 10262560.

The previous prime is 10903979. The next prime is 10903993. The reversal of 10903987 is 78930901.

10903987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10903987 - 2³ = 10903979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10903687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320689 + ... + 320722.

It is an arithmetic number, because the mean of its divisors is an integer number (2886354).

Almost surely, 2^10903987 is an apocalyptic number.

10903987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

10903987 is a deficient number, since it is larger than the sum of its proper divisors (641429).

10903987 is an equidigital number, since it uses as much as digits as its factorization.

10903987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641428.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 10903987 is about 3302.1185623778. The cubic root of 10903987 is about 221.7490536148.

The spelling of 10903987 in words is "ten million, nine hundred three thousand, nine hundred eighty-seven".