9949791 has 16 divisors (see below), whose sum is σ = 13870080. Its totient is φ = 6336960.

The previous prime is 9949783. The next prime is 9949829. The reversal of 9949791 is 1979499.

It is not a de Polignac number, because 9949791 - 2³ = 9949783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9949791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9949721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7075 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (866880).

Almost surely, 2^9949791 is an apocalyptic number.

9949791 is a deficient number, since it is larger than the sum of its proper divisors (3920289).

9949791 is a wasteful number, since it uses less digits than its factorization.

9949791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406.

The product of its digits is 183708, while the sum is 48.

The square root of 9949791 is about 3154.3289302164. The cubic root of 9949791 is about 215.0822904754.

The spelling of 9949791 in words is "nine million, nine hundred forty-nine thousand, seven hundred ninety-one".