10749891 has 4 divisors (see below), whose sum is σ = 14333192. Its totient is φ = 7166592.

The previous prime is 10749889. The next prime is 10749917. The reversal of 10749891 is 19894701.

It is a happy number.

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

It is not a de Polignac number, because 10749891 - 2¹ = 10749889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10749811) 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, 1791646 + ... + 1791651.

It is an arithmetic number, because the mean of its divisors is an integer number (3583298).

Almost surely, 2^10749891 is an apocalyptic number.

10749891 is a deficient number, since it is larger than the sum of its proper divisors (3583301).

10749891 is an equidigital number, since it uses as much as digits as its factorization.

10749891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3583300.

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

The square root of 10749891 is about 3278.7026397647. The cubic root of 10749891 is about 220.6995021870.

The spelling of 10749891 in words is "ten million, seven hundred forty-nine thousand, eight hundred ninety-one".