838906239 has 8 divisors (see below), whose sum is σ = 1122495232. Its totient is φ = 557294040.

The previous prime is 838906231. The next prime is 838906241. The reversal of 838906239 is 932609838.

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

It is not a de Polignac number, because 838906239 - 2³ = 838906231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838906231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493207 + ... + 494904.

It is an arithmetic number, because the mean of its divisors is an integer number (140311904).

Almost surely, 2^838906239 is an apocalyptic number.

838906239 is a deficient number, since it is larger than the sum of its proper divisors (283588993).

838906239 is a wasteful number, since it uses less digits than its factorization.

838906239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988397.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 838906239 is about 28963.8781761007. The cubic root of 838906239 is about 943.1290920216.

The spelling of 838906239 in words is "eight hundred thirty-eight million, nine hundred six thousand, two hundred thirty-nine".