4491603 has 6 divisors (see below), whose sum is σ = 6487884. Its totient is φ = 2994396.

The previous prime is 4491569. The next prime is 4491623. The reversal of 4491603 is 3061944.

It is not a de Polignac number, because 4491603 - 2²¹ = 2394451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4491623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 249525 + ... + 249542.

It is an arithmetic number, because the mean of its divisors is an integer number (1081314).

Almost surely, 2^4491603 is an apocalyptic number.

4491603 is a deficient number, since it is larger than the sum of its proper divisors (1996281).

4491603 is a wasteful number, since it uses less digits than its factorization.

4491603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499073 (or 499070 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4491603 is about 2119.3402275237. The cubic root of 4491603 is about 164.9936085679.

The spelling of 4491603 in words is "four million, four hundred ninety-one thousand, six hundred three".