9954891 has 6 divisors (see below), whose sum is σ = 14379300. Its totient is φ = 6636588.

The previous prime is 9954881. The next prime is 9954907. The reversal of 9954891 is 1984599.

It is not a de Polignac number, because 9954891 - 2²³ = 1566283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9954851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553041 + ... + 553058.

It is an arithmetic number, because the mean of its divisors is an integer number (2396550).

Almost surely, 2^9954891 is an apocalyptic number.

9954891 is a deficient number, since it is larger than the sum of its proper divisors (4424409).

9954891 is a wasteful number, since it uses less digits than its factorization.

9954891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106105 (or 1106102 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 9954891 is about 3155.1372394874. The cubic root of 9954891 is about 215.1190326984.

It can be divided in two parts, 995 and 4891, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 9954891 in words is "nine million, nine hundred fifty-four thousand, eight hundred ninety-one".