838161427 has 4 divisors (see below), whose sum is σ = 838232920. Its totient is φ = 838089936.

The previous prime is 838161409. The next prime is 838161433. The reversal of 838161427 is 724161838.

838161427 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 724161838 = 2 ⋅362080919.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838161427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 838161427.

It is not an unprimeable number, because it can be changed into a prime (838161437) 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, 13578 + ... + 43135.

It is an arithmetic number, because the mean of its divisors is an integer number (209558230).

Almost surely, 2^838161427 is an apocalyptic number.

838161427 is a deficient number, since it is larger than the sum of its proper divisors (71493).

838161427 is a wasteful number, since it uses less digits than its factorization.

838161427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71492.

The product of its digits is 64512, while the sum is 40.

The square root of 838161427 is about 28951.0177195898. The cubic root of 838161427 is about 942.8498944095.

The spelling of 838161427 in words is "eight hundred thirty-eight million, one hundred sixty-one thousand, four hundred twenty-seven".