4387393 has 4 divisors (see below), whose sum is σ = 4470228. Its totient is φ = 4304560.

The previous prime is 4387391. The next prime is 4387429. The reversal of 4387393 is 3937834.

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 1723969 + 2663424 = 1313^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 4387393 - 2¹ = 4387391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4387391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41338 + ... + 41443.

It is an arithmetic number, because the mean of its divisors is an integer number (1117557).

Almost surely, 2^4387393 is an apocalyptic number.

It is an amenable number.

4387393 is a deficient number, since it is larger than the sum of its proper divisors (82835).

4387393 is an equidigital number, since it uses as much as digits as its factorization.

4387393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82834.

The product of its digits is 54432, while the sum is 37.

The square root of 4387393 is about 2094.6104649791. The cubic root of 4387393 is about 163.7076016331.

The spelling of 4387393 in words is "four million, three hundred eighty-seven thousand, three hundred ninety-three".