4163239 has 4 divisors (see below), whose sum is σ = 4169880. Its totient is φ = 4156600.

The previous prime is 4163233. The next prime is 4163251. The reversal of 4163239 is 9323614.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9323614 = 2 ⋅4661807.

It is a cyclic number.

It is not a de Polignac number, because 4163239 - 2³ = 4163231 is a prime.

It is a super-2 number, since 2×4163239² = 34665117942242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4163231) 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, 2269 + ... + 3670.

It is an arithmetic number, because the mean of its divisors is an integer number (1042470).

Almost surely, 2^4163239 is an apocalyptic number.

4163239 is a deficient number, since it is larger than the sum of its proper divisors (6641).

4163239 is an equidigital number, since it uses as much as digits as its factorization.

4163239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640.

The product of its digits is 3888, while the sum is 28.

The square root of 4163239 is about 2040.4016761412. The cubic root of 4163239 is about 160.8707603187.

It can be divided in two parts, 416 and 3239, that added together give a triangular number (3655 = T₈₅).

The spelling of 4163239 in words is "four million, one hundred sixty-three thousand, two hundred thirty-nine".