4393871 has 8 divisors (see below), whose sum is σ = 4690224. Its totient is φ = 4101760.

The previous prime is 4393853. The next prime is 4393903. The reversal of 4393871 is 1783934.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4393871 - 2¹⁴ = 4377487 is a prime.

It is a super-2 number, since 2×4393871² = 38612204729282, 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 (4393811) 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 7 ways as a sum of consecutive naturals, for example, 1241 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (586278).

Almost surely, 2^4393871 is an apocalyptic number.

4393871 is a deficient number, since it is larger than the sum of its proper divisors (296353).

4393871 is a wasteful number, since it uses less digits than its factorization.

4393871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its digits is 18144, while the sum is 35.

The square root of 4393871 is about 2096.1562441765. The cubic root of 4393871 is about 163.7881336125.

The spelling of 4393871 in words is "four million, three hundred ninety-three thousand, eight hundred seventy-one".