4500491 has 2 divisors, whose sum is σ = 4500492. Its totient is φ = 4500490.

The previous prime is 4500443. The next prime is 4500493. The reversal of 4500491 is 1940054.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4500491 is a prime.

It is a Sophie Germain prime.

Together with 4500493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4500493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250245 + 2250246.

It is an arithmetic number, because the mean of its divisors is an integer number (2250246).

Almost surely, 2^4500491 is an apocalyptic number.

4500491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4500491 is an equidigital number, since it uses as much as digits as its factorization.

4500491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 4500491 is about 2121.4360702128. The cubic root of 4500491 is about 165.1023668422.

The spelling of 4500491 in words is "four million, five hundred thousand, four hundred ninety-one".