100839834 has 12 divisors (see below), whose sum is σ = 218486346. Its totient is φ = 33613272.

The previous prime is 100839811. The next prime is 100839841. The reversal of 100839834 is 438938001.

It can be written as a sum of positive squares in only one way, i.e., 89245809 + 11594025 = 9447^2 + 3405^2 .

It is a super-2 number, since 2×100839834² = 20337344242295112, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2801089 + ... + 2801124.

Almost surely, 2^100839834 is an apocalyptic number.

100839834 is an abundant number, since it is smaller than the sum of its proper divisors (117646512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100839834 is a wasteful number, since it uses less digits than its factorization.

100839834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5602221 (or 5602218 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 100839834 is about 10041.9039031451. The cubic root of 100839834 is about 465.4546507101.

The spelling of 100839834 in words is "one hundred million, eight hundred thirty-nine thousand, eight hundred thirty-four".