20895873 has 8 divisors (see below), whose sum is σ = 29500128. Its totient is φ = 13111104.

The previous prime is 20895869. The next prime is 20895883. The reversal of 20895873 is 37859802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20895873 - 2² = 20895869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20895803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204811 + ... + 204912.

It is an arithmetic number, because the mean of its divisors is an integer number (3687516).

Almost surely, 2^20895873 is an apocalyptic number.

It is an amenable number.

20895873 is a deficient number, since it is larger than the sum of its proper divisors (8604255).

20895873 is a wasteful number, since it uses less digits than its factorization.

20895873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409743.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 20895873 is about 4571.2003893945. The cubic root of 20895873 is about 275.4356642625.

The spelling of 20895873 in words is "twenty million, eight hundred ninety-five thousand, eight hundred seventy-three".