4566491 has 2 divisors, whose sum is σ = 4566492. Its totient is φ = 4566490.

The previous prime is 4566481. The next prime is 4566553. The reversal of 4566491 is 1946654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4566491 - 2¹⁸ = 4304347 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4566431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283245 + 2283246.

It is an arithmetic number, because the mean of its divisors is an integer number (2283246).

Almost surely, 2^4566491 is an apocalyptic number.

4566491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4566491 is an equidigital number, since it uses as much as digits as its factorization.

4566491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 4566491 is about 2136.9349545552. The cubic root of 4566491 is about 165.9055324507.

The spelling of 4566491 in words is "four million, five hundred sixty-six thousand, four hundred ninety-one".