100856394 has 16 divisors (see below), whose sum is σ = 224125440. Its totient is φ = 33618780.

The previous prime is 100856341. The next prime is 100856417. The reversal of 100856394 is 493658001.

100856394 is a `hidden beast` number, since 1 + 0 + 0 + 8 + 563 + 94 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 933802 + ... + 933909.

It is an arithmetic number, because the mean of its divisors is an integer number (14007840).

Almost surely, 2^100856394 is an apocalyptic number.

100856394 is an abundant number, since it is smaller than the sum of its proper divisors (123269046).

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

100856394 is a wasteful number, since it uses less digits than its factorization.

100856394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867722 (or 1867716 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 100856394 is about 10042.7284141313. The cubic root of 100856394 is about 465.4801284300.

The spelling of 100856394 in words is "one hundred million, eight hundred fifty-six thousand, three hundred ninety-four".