4521893 has 2 divisors, whose sum is σ = 4521894. Its totient is φ = 4521892.

The previous prime is 4521889. The next prime is 4521899. The reversal of 4521893 is 3981254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4153444 + 368449 = 2038^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521893 - 2² = 4521889 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4521899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260946 + 2260947.

It is an arithmetic number, because the mean of its divisors is an integer number (2260947).

Almost surely, 2^4521893 is an apocalyptic number.

It is an amenable number.

4521893 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521893 is an equidigital number, since it uses as much as digits as its factorization.

4521893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 4521893 is about 2126.4743120950. The cubic root of 4521893 is about 165.3636668062.

The spelling of 4521893 in words is "four million, five hundred twenty-one thousand, eight hundred ninety-three".