838085439 has 4 divisors (see below), whose sum is σ = 1117447256. Its totient is φ = 558723624.

The previous prime is 838085411. The next prime is 838085461. The reversal of 838085439 is 934580838.

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

It is not a de Polignac number, because 838085439 - 2⁵ = 838085407 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 (838085489) 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, 139680904 + ... + 139680909.

It is an arithmetic number, because the mean of its divisors is an integer number (279361814).

Almost surely, 2^838085439 is an apocalyptic number.

838085439 is a deficient number, since it is larger than the sum of its proper divisors (279361817).

838085439 is a wasteful number, since it uses less digits than its factorization.

838085439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279361816.

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 838085439 is about 28949.7053352880. The cubic root of 838085439 is about 942.8214005177.

The spelling of 838085439 in words is "eight hundred thirty-eight million, eighty-five thousand, four hundred thirty-nine".