10947891 has 4 divisors (see below), whose sum is σ = 14597192. Its totient is φ = 7298592.

The previous prime is 10947889. The next prime is 10947941. The reversal of 10947891 is 19874901.

It is a happy number.

10947891 is digitally balanced in base 2 and base 3, because in such bases 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 10947891 - 2¹ = 10947889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10947821) 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, 1824646 + ... + 1824651.

It is an arithmetic number, because the mean of its divisors is an integer number (3649298).

Almost surely, 2^10947891 is an apocalyptic number.

10947891 is a deficient number, since it is larger than the sum of its proper divisors (3649301).

10947891 is an equidigital number, since it uses as much as digits as its factorization.

10947891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3649300.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 10947891 is about 3308.7597374243. The cubic root of 10947891 is about 222.0462731235.

The spelling of 10947891 in words is "ten million, nine hundred forty-seven thousand, eight hundred ninety-one".