20383873 has 4 divisors (see below), whose sum is σ = 20449728. Its totient is φ = 20318020.

The previous prime is 20383861. The next prime is 20383877. The reversal of 20383873 is 37838302.

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 20383873 - 2⁵ = 20383841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20383877) 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, 32461 + ... + 33082.

It is an arithmetic number, because the mean of its divisors is an integer number (5112432).

Almost surely, 2^20383873 is an apocalyptic number.

It is an amenable number.

20383873 is a deficient number, since it is larger than the sum of its proper divisors (65855).

20383873 is an equidigital number, since it uses as much as digits as its factorization.

20383873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65854.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20383873 is about 4514.8502743723. The cubic root of 20383873 is about 273.1674204630.

The spelling of 20383873 in words is "twenty million, three hundred eighty-three thousand, eight hundred seventy-three".