104890001 has 4 divisors (see below), whose sum is σ = 104911872. Its totient is φ = 104868132.

The previous prime is 104889991. The next prime is 104890003. The reversal of 104890001 is 100098401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 104890001 - 2¹⁸ = 104627857 is a prime.

It is a super-2 number, since 2×104890001² = 22003824619560002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104890003) 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, 281 + ... + 14486.

It is an arithmetic number, because the mean of its divisors is an integer number (26227968).

Almost surely, 2^104890001 is an apocalyptic number.

It is an amenable number.

104890001 is a deficient number, since it is larger than the sum of its proper divisors (21871).

104890001 is an equidigital number, since it uses as much as digits as its factorization.

104890001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 104890001 is about 10241.5819578813. The cubic root of 104890001 is about 471.6045970978.

The spelling of 104890001 in words is "one hundred four million, eight hundred ninety thousand, one".