4789491 has 16 divisors (see below), whose sum is σ = 7358208. Its totient is φ = 2714400.

The previous prime is 4789487. The next prime is 4789513. The reversal of 4789491 is 1949874.

It is not a de Polignac number, because 4789491 - 2² = 4789487 is a prime.

4789491 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4789471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1881 + ... + 3621.

It is an arithmetic number, because the mean of its divisors is an integer number (459888).

Almost surely, 2^4789491 is an apocalyptic number.

4789491 is a deficient number, since it is larger than the sum of its proper divisors (2568717).

4789491 is a wasteful number, since it uses less digits than its factorization.

4789491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882.

The product of its digits is 72576, while the sum is 42.

The square root of 4789491 is about 2188.4905757165. The cubic root of 4789491 is about 168.5633370831.

The spelling of 4789491 in words is "four million, seven hundred eighty-nine thousand, four hundred ninety-one".