806838381 has 8 divisors (see below), whose sum is σ = 1195316160. Its totient is φ = 537892236.

The previous prime is 806838371. The next prime is 806838407. The reversal of 806838381 is 183838608.

It is not a de Polignac number, because 806838381 - 2⁵ = 806838349 is a prime.

It is a super-2 number, since 2×806838381² = 1301976346109402322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806838341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14941425 + ... + 14941478.

It is an arithmetic number, because the mean of its divisors is an integer number (149414520).

Almost surely, 2^806838381 is an apocalyptic number.

It is an amenable number.

806838381 is a deficient number, since it is larger than the sum of its proper divisors (388477779).

806838381 is a wasteful number, since it uses less digits than its factorization.

806838381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29882912 (or 29882906 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 806838381 is about 28404.9006511200. The cubic root of 806838381 is about 930.9553450262.

The spelling of 806838381 in words is "eight hundred six million, eight hundred thirty-eight thousand, three hundred eighty-one".