4390093 has 2 divisors, whose sum is σ = 4390094. Its totient is φ = 4390092.

The previous prime is 4390091. The next prime is 4390117. The reversal of 4390093 is 3900934.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3433609 + 956484 = 1853^2 + 978^2 .

It is a cyclic number.

It is not a de Polignac number, because 4390093 - 2¹ = 4390091 is a prime.

Together with 4390091, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4390091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2195046 + 2195047.

It is an arithmetic number, because the mean of its divisors is an integer number (2195047).

Almost surely, 2^4390093 is an apocalyptic number.

It is an amenable number.

4390093 is a deficient number, since it is larger than the sum of its proper divisors (1).

4390093 is an equidigital number, since it uses as much as digits as its factorization.

4390093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 4390093 is about 2095.2548770973. The cubic root of 4390093 is about 163.7411766122.

The spelling of 4390093 in words is "four million, three hundred ninety thousand, ninety-three".