3808239 has 4 divisors (see below), whose sum is σ = 5077656. Its totient is φ = 2538824.

The previous prime is 3808229. The next prime is 3808241. The reversal of 3808239 is 9328083.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3808239 - 2⁴ = 3808223 is a prime.

It is a super-2 number, since 2×3808239² = 29005368562242, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3808229) 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, 634704 + ... + 634709.

It is an arithmetic number, because the mean of its divisors is an integer number (1269414).

Almost surely, 2^3808239 is an apocalyptic number.

3808239 is a deficient number, since it is larger than the sum of its proper divisors (1269417).

3808239 is a wasteful number, since it uses less digits than its factorization.

3808239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269416.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 3808239 is about 1951.4709836429. The cubic root of 3808239 is about 156.1617733388.

The spelling of 3808239 in words is "three million, eight hundred eight thousand, two hundred thirty-nine".