10981791 has 16 divisors (see below), whose sum is σ = 17126400. Its totient is φ = 6935544.

The previous prime is 10981771. The next prime is 10981793. The reversal of 10981791 is 19718901.

It is not a de Polignac number, because 10981791 - 2⁹ = 10981279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10981793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10191 + ... + 11216.

It is an arithmetic number, because the mean of its divisors is an integer number (1070400).

Almost surely, 2^10981791 is an apocalyptic number.

10981791 is a deficient number, since it is larger than the sum of its proper divisors (6144609).

10981791 is a wasteful number, since it uses less digits than its factorization.

10981791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21435 (or 21429 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 10981791 is about 3313.8785433386. The cubic root of 10981791 is about 222.2752247554.

The spelling of 10981791 in words is "ten million, nine hundred eighty-one thousand, seven hundred ninety-one".