9419891 has 12 divisors (see below), whose sum is σ = 10299240. Its totient is φ = 8611200.

The previous prime is 9419869. The next prime is 9419897. The reversal of 9419891 is 1989149.

It is not a de Polignac number, because 9419891 - 2¹⁴ = 9403507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9419897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23291 + ... + 23691.

It is an arithmetic number, because the mean of its divisors is an integer number (858270).

Almost surely, 2^9419891 is an apocalyptic number.

9419891 is a deficient number, since it is larger than the sum of its proper divisors (879349).

9419891 is a wasteful number, since it uses less digits than its factorization.

9419891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 553 counting only the distinct ones).

The product of its digits is 23328, while the sum is 41.

The square root of 9419891 is about 3069.1840935337. The cubic root of 9419891 is about 211.1941864384.

The spelling of 9419891 in words is "nine million, four hundred nineteen thousand, eight hundred ninety-one".