838906 has 8 divisors (see below), whose sum is σ = 1271124. Its totient is φ = 415200.

The previous prime is 838897. The next prime is 838909. The reversal of 838906 is 609838.

It can be written as a sum of positive squares in 2 ways, for example, as 837225 + 1681 = 915^2 + 41^2 .

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

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (838909) 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, 1875 + ... + 2278.

2⁸³⁸⁹⁰⁶ is an apocalyptic number.

838906 is a deficient number, since it is larger than the sum of its proper divisors (432218).

838906 is a wasteful number, since it uses less digits than its factorization.

838906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 838906 is about 915.9181186110. The cubic root of 838906 is about 94.3129002457.

The spelling of 838906 in words is "eight hundred thirty-eight thousand, nine hundred six".