10447891 has 8 divisors (see below), whose sum is σ = 11059200. Its totient is φ = 9842760.

The previous prime is 10447847. The next prime is 10447901. The reversal of 10447891 is 19874401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10447891 - 2²¹ = 8350739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10447831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2190 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (1382400).

Almost surely, 2^10447891 is an apocalyptic number.

10447891 is a deficient number, since it is larger than the sum of its proper divisors (611309).

10447891 is a wasteful number, since it uses less digits than its factorization.

10447891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 10447891 is about 3232.3197552222. The cubic root of 10447891 is about 218.6131142509.

The spelling of 10447891 in words is "ten million, four hundred forty-seven thousand, eight hundred ninety-one".