10927991 has 12 divisors (see below), whose sum is σ = 11832912. Its totient is φ = 10056384.

The previous prime is 10927981. The next prime is 10927993. The reversal of 10927991 is 19972901.

10927991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10927991 - 2¹⁰ = 10926967 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 (10927993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106046 + ... + 106148.

It is an arithmetic number, because the mean of its divisors is an integer number (986076).

Almost surely, 2^10927991 is an apocalyptic number.

10927991 is a deficient number, since it is larger than the sum of its proper divisors (904921).

10927991 is an equidigital number, since it uses as much as digits as its factorization.

10927991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 38.

The square root of 10927991 is about 3305.7512005594. The cubic root of 10927991 is about 221.9116535623.

The spelling of 10927991 in words is "ten million, nine hundred twenty-seven thousand, nine hundred ninety-one".