4392065 has 4 divisors (see below), whose sum is σ = 5270484. Its totient is φ = 3513648.

The previous prime is 4392013. The next prime is 4392077. The reversal of 4392065 is 5602934.

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 2093809 + 2298256 = 1447^2 + 1516^2 .

It is a cyclic number.

It is not a de Polignac number, because 4392065 - 2¹⁰ = 4391041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439202 + ... + 439211.

It is an arithmetic number, because the mean of its divisors is an integer number (1317621).

Almost surely, 2^4392065 is an apocalyptic number.

It is an amenable number.

4392065 is a deficient number, since it is larger than the sum of its proper divisors (878419).

4392065 is an equidigital number, since it uses as much as digits as its factorization.

4392065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878418.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 4392065 is about 2095.7254114029. The cubic root of 4392065 is about 163.7656900841.

Adding to 4392065 its reverse (5602934), we get a palindrome (9994999).

The spelling of 4392065 in words is "four million, three hundred ninety-two thousand, sixty-five".