104406891 has 4 divisors (see below), whose sum is σ = 139209192. Its totient is φ = 69604592.

The previous prime is 104406857. The next prime is 104406901. The reversal of 104406891 is 198604401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104406891 - 2⁷ = 104406763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104406811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17401146 + ... + 17401151.

It is an arithmetic number, because the mean of its divisors is an integer number (34802298).

Almost surely, 2^104406891 is an apocalyptic number.

104406891 is a deficient number, since it is larger than the sum of its proper divisors (34802301).

104406891 is an equidigital number, since it uses as much as digits as its factorization.

104406891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34802300.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 104406891 is about 10217.9690252026. The cubic root of 104406891 is about 470.8794323586.

The spelling of 104406891 in words is "one hundred four million, four hundred six thousand, eight hundred ninety-one".