4909791 has 16 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 3161280.

The previous prime is 4909781. The next prime is 4909823. The reversal of 4909791 is 1979094.

It is not a de Polignac number, because 4909791 - 2⁹ = 4909279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4909781) 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, 21906 + ... + 22128.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^4909791 is an apocalyptic number.

4909791 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

4909791 is a deficient number, since it is larger than the sum of its proper divisors (1863969).

4909791 is a wasteful number, since it uses less digits than its factorization.

4909791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 4909791 is about 2215.8048199244. The cubic root of 4909791 is about 169.9629792512.

The spelling of 4909791 in words is "four million, nine hundred nine thousand, seven hundred ninety-one".