838603121 has 16 divisors (see below), whose sum is σ = 880812240. Its totient is φ = 797368320.

The previous prime is 838603111. The next prime is 838603127. The reversal of 838603121 is 121306838.

It is a happy number.

838603121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 52417600 + 786185521 = 7240^2 + 28039^2 .

It is a cyclic number.

It is not a de Polignac number, because 838603121 - 2¹⁰ = 838602097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838603127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677315 + ... + 678551.

It is an arithmetic number, because the mean of its divisors is an integer number (55050765).

Almost surely, 2^838603121 is an apocalyptic number.

It is an amenable number.

838603121 is a deficient number, since it is larger than the sum of its proper divisors (42209119).

838603121 is a wasteful number, since it uses less digits than its factorization.

838603121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 838603121 is about 28958.6450131908. The cubic root of 838603121 is about 943.0154862217.

Adding to 838603121 its reverse (121306838), we get a palindrome (959909959).

The spelling of 838603121 in words is "eight hundred thirty-eight million, six hundred three thousand, one hundred twenty-one".