18896873 has 4 divisors (see below), whose sum is σ = 18918528. Its totient is φ = 18875220.

The previous prime is 18896833. The next prime is 18896897. The reversal of 18896873 is 37869881.

It is a happy number.

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 18896873 - 2¹² = 18892777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18896833) 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, 9461 + ... + 11282.

It is an arithmetic number, because the mean of its divisors is an integer number (4729632).

Almost surely, 2^18896873 is an apocalyptic number.

It is an amenable number.

18896873 is a deficient number, since it is larger than the sum of its proper divisors (21655).

18896873 is an equidigital number, since it uses as much as digits as its factorization.

18896873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21654.

The product of its digits is 580608, while the sum is 50.

The square root of 18896873 is about 4347.0533698127. The cubic root of 18896873 is about 266.3565093643.

The spelling of 18896873 in words is "eighteen million, eight hundred ninety-six thousand, eight hundred seventy-three".