4591493 has 2 divisors, whose sum is σ = 4591494. Its totient is φ = 4591492.

The previous prime is 4591487. The next prime is 4591507. The reversal of 4591493 is 3941954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4571044 + 20449 = 2138^2 + 143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4591493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4591403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2295746 + 2295747.

It is an arithmetic number, because the mean of its divisors is an integer number (2295747).

Almost surely, 2^4591493 is an apocalyptic number.

It is an amenable number.

4591493 is a deficient number, since it is larger than the sum of its proper divisors (1).

4591493 is an equidigital number, since it uses as much as digits as its factorization.

4591493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 4591493 is about 2142.7769365942. The cubic root of 4591493 is about 166.2077647248.

The spelling of 4591493 in words is "four million, five hundred ninety-one thousand, four hundred ninety-three".