838383215 has 16 divisors (see below), whose sum is σ = 1026984960. Its totient is φ = 656843040.

The previous prime is 838383209. The next prime is 838383233. The reversal of 838383215 is 512383838.

It is not a de Polignac number, because 838383215 - 2¹⁰ = 838382191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74702 + ... + 85188.

It is an arithmetic number, because the mean of its divisors is an integer number (64186560).

Almost surely, 2^838383215 is an apocalyptic number.

838383215 is a deficient number, since it is larger than the sum of its proper divisors (188601745).

838383215 is a wasteful number, since it uses less digits than its factorization.

838383215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822.

The product of its digits is 138240, while the sum is 41.

The square root of 838383215 is about 28954.8478669808. The cubic root of 838383215 is about 942.9330503680.

The spelling of 838383215 in words is "eight hundred thirty-eight million, three hundred eighty-three thousand, two hundred fifteen".