838947 has 4 divisors (see below), whose sum is σ = 1118600. Its totient is φ = 559296.

The previous prime is 838939. The next prime is 838949. The reversal of 838947 is 749838.

838947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 838947 - 2³ = 838939 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (838949) 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, 139822 + ... + 139827.

It is an arithmetic number, because the mean of its divisors is an integer number (279650).

2⁸³⁸⁹⁴⁷ is an apocalyptic number.

838947 is a deficient number, since it is larger than the sum of its proper divisors (279653).

838947 is a wasteful number, since it uses less digits than its factorization.

838947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279652.

The product of its digits is 48384, while the sum is 39.

The square root of 838947 is about 915.9405002510. The cubic root of 838947 is about 94.3144366777.

The spelling of 838947 in words is "eight hundred thirty-eight thousand, nine hundred forty-seven".