3858239 has 16 divisors (see below), whose sum is σ = 4872960. Its totient is φ = 2967360.

The previous prime is 3858233. The next prime is 3858251. The reversal of 3858239 is 9328583.

It is not a de Polignac number, because 3858239 - 2⁸ = 3857983 is a prime.

It is a super-2 number, since 2×3858239² = 29772016362242, 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 (3858233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6572 + ... + 7134.

It is an arithmetic number, because the mean of its divisors is an integer number (304560).

Almost surely, 2^3858239 is an apocalyptic number.

3858239 is a deficient number, since it is larger than the sum of its proper divisors (1014721).

3858239 is a wasteful number, since it uses less digits than its factorization.

3858239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670.

The product of its digits is 51840, while the sum is 38.

The square root of 3858239 is about 1964.2400566122. The cubic root of 3858239 is about 156.8422421721.

The spelling of 3858239 in words is "three million, eight hundred fifty-eight thousand, two hundred thirty-nine".