4537493 has 2 divisors, whose sum is σ = 4537494. Its totient is φ = 4537492.

The previous prime is 4537433. The next prime is 4537499. The reversal of 4537493 is 3947354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3602404 + 935089 = 1898^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 4537493 - 2²⁰ = 3488917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4537499) 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 as a sum of consecutive naturals, namely, 2268746 + 2268747.

It is an arithmetic number, because the mean of its divisors is an integer number (2268747).

Almost surely, 2^4537493 is an apocalyptic number.

It is an amenable number.

4537493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4537493 is an equidigital number, since it uses as much as digits as its factorization.

4537493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 4537493 is about 2130.1391973296. The cubic root of 4537493 is about 165.5536102917.

The spelling of 4537493 in words is "four million, five hundred thirty-seven thousand, four hundred ninety-three".