4289393 has 4 divisors (see below), whose sum is σ = 4298148. Its totient is φ = 4280640.

The previous prime is 4289387. The next prime is 4289471. The reversal of 4289393 is 3939824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1024144 + 3265249 = 1012^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 4289393 - 2⁸ = 4289137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4289353) 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 in 3 ways as a sum of consecutive naturals, for example, 3596 + ... + 4637.

It is an arithmetic number, because the mean of its divisors is an integer number (1074537).

Almost surely, 2^4289393 is an apocalyptic number.

It is an amenable number.

4289393 is a deficient number, since it is larger than the sum of its proper divisors (8755).

4289393 is an equidigital number, since it uses as much as digits as its factorization.

4289393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8754.

The product of its digits is 46656, while the sum is 38.

The square root of 4289393 is about 2071.0849813564. The cubic root of 4289393 is about 162.4795145774.

It can be divided in two parts, 428 and 9393, that multiplied together give a palindrome (4020204).

The spelling of 4289393 in words is "four million, two hundred eighty-nine thousand, three hundred ninety-three".