10891063 has 4 divisors (see below), whose sum is σ = 11003440. Its totient is φ = 10778688.

The previous prime is 10891057. The next prime is 10891079. The reversal of 10891063 is 36019801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36019801 = 19 ⋅1895779.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10891063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10891163) 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, 56043 + ... + 56236.

It is an arithmetic number, because the mean of its divisors is an integer number (2750860).

Almost surely, 2^10891063 is an apocalyptic number.

10891063 is a deficient number, since it is larger than the sum of its proper divisors (112377).

10891063 is an equidigital number, since it uses as much as digits as its factorization.

10891063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112376.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 10891063 is about 3300.1610566759. The cubic root of 10891063 is about 221.6614092886.

The spelling of 10891063 in words is "ten million, eight hundred ninety-one thousand, sixty-three".