4395239 has 4 divisors (see below), whose sum is σ = 4436424. Its totient is φ = 4354056.

The previous prime is 4395229. The next prime is 4395271. The reversal of 4395239 is 9325934.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9325934 = 2 ⋅4662967.

It is a cyclic number.

It is not a de Polignac number, because 4395239 - 2⁸ = 4394983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4395199 and 4395208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4395229) 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, 20432 + ... + 20645.

It is an arithmetic number, because the mean of its divisors is an integer number (1109106).

Almost surely, 2^4395239 is an apocalyptic number.

4395239 is a deficient number, since it is larger than the sum of its proper divisors (41185).

4395239 is a wasteful number, since it uses less digits than its factorization.

4395239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41184.

The product of its digits is 29160, while the sum is 35.

The square root of 4395239 is about 2096.4825303350. The cubic root of 4395239 is about 163.8051299329.

The spelling of 4395239 in words is "four million, three hundred ninety-five thousand, two hundred thirty-nine".