4909091 has 12 divisors (see below), whose sum is σ = 5586000. Its totient is φ = 4305840.

The previous prime is 4909057. The next prime is 4909109. The reversal of 4909091 is 1909094.

It is not a de Polignac number, because 4909091 - 2⁶ = 4909027 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (4908091) 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, 2810 + ... + 4208.

It is an arithmetic number, because the mean of its divisors is an integer number (465500).

Almost surely, 2^4909091 is an apocalyptic number.

4909091 is a deficient number, since it is larger than the sum of its proper divisors (676909).

4909091 is a wasteful number, since it uses less digits than its factorization.

4909091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 4909091 is about 2215.6468581432. The cubic root of 4909091 is about 169.9549015319.

The spelling of 4909091 in words is "four million, nine hundred nine thousand, ninety-one".