4491291 has 12 divisors (see below), whose sum is σ = 6966312. Its totient is φ = 2566368.

The previous prime is 4491241. The next prime is 4491301. The reversal of 4491291 is 1921944.

It is not a de Polignac number, because 4491291 - 2⁹ = 4490779 is a prime.

4491291 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4491241) 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, 15130 + ... + 15423.

It is an arithmetic number, because the mean of its divisors is an integer number (580526).

Almost surely, 2^4491291 is an apocalyptic number.

4491291 is a deficient number, since it is larger than the sum of its proper divisors (2475021).

4491291 is a wasteful number, since it uses less digits than its factorization.

4491291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30570 (or 30563 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 4491291 is about 2119.2666184320. The cubic root of 4491291 is about 164.9897881651.

The spelling of 4491291 in words is "four million, four hundred ninety-one thousand, two hundred ninety-one".