839923101 has 20 divisors (see below), whose sum is σ = 1320739200. Its totient is φ = 530476776.

The previous prime is 839923087. The next prime is 839923109. The reversal of 839923101 is 101329938.

It is not a de Polignac number, because 839923101 - 2²¹ = 837825949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (839923109) 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 19 ways as a sum of consecutive naturals, for example, 271341 + ... + 274418.

It is an arithmetic number, because the mean of its divisors is an integer number (66036960).

Almost surely, 2^839923101 is an apocalyptic number.

839923101 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

839923101 is a deficient number, since it is larger than the sum of its proper divisors (480816099).

839923101 is a wasteful number, since it uses less digits than its factorization.

839923101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545790 (or 545781 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 839923101 is about 28981.4268282291. The cubic root of 839923101 is about 943.5100026490.

The spelling of 839923101 in words is "eight hundred thirty-nine million, nine hundred twenty-three thousand, one hundred one".