100009894 has 4 divisors (see below), whose sum is σ = 150014844. Its totient is φ = 50004946.

The previous prime is 100009883. The next prime is 100009913. The reversal of 100009894 is 498900001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 498900001 = 2477 ⋅201413.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25002472 + ... + 25002475.

It is an arithmetic number, because the mean of its divisors is an integer number (37503711).

Almost surely, 2^100009894 is an apocalyptic number.

100009894 is a deficient number, since it is larger than the sum of its proper divisors (50004950).

100009894 is an equidigital number, since it uses as much as digits as its factorization.

100009894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50004949.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 100009894 is about 10000.4946877642. The cubic root of 100009894 is about 464.1741908164.

Adding to 100009894 its reverse (498900001), we get a palindrome (598909895).

The spelling of 100009894 in words is "one hundred million, nine thousand, eight hundred ninety-four".