9479891 has 2 divisors, whose sum is σ = 9479892. Its totient is φ = 9479890.

The previous prime is 9479857. The next prime is 9479923. The reversal of 9479891 is 1989749.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9479891 - 2¹⁴ = 9463507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9479801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4739945 + 4739946.

It is an arithmetic number, because the mean of its divisors is an integer number (4739946).

Almost surely, 2^9479891 is an apocalyptic number.

9479891 is a deficient number, since it is larger than the sum of its proper divisors (1).

9479891 is an equidigital number, since it uses as much as digits as its factorization.

9479891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 9479891 is about 3078.9431628401. The cubic root of 9479891 is about 211.6416382528.

The spelling of 9479891 in words is "nine million, four hundred seventy-nine thousand, eight hundred ninety-one".