20883017 has 4 divisors (see below), whose sum is σ = 21177216. Its totient is φ = 20588820.

The previous prime is 20883013. The next prime is 20883043. The reversal of 20883017 is 71038802.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71038802 = 2 ⋅35519401.

It is a cyclic number.

It is not a de Polignac number, because 20883017 - 2² = 20883013 is a prime.

It is a super-2 number, since 2×20883017² = 872200798044578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20883013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146993 + ... + 147134.

It is an arithmetic number, because the mean of its divisors is an integer number (5294304).

Almost surely, 2^20883017 is an apocalyptic number.

It is an amenable number.

20883017 is a deficient number, since it is larger than the sum of its proper divisors (294199).

20883017 is an equidigital number, since it uses as much as digits as its factorization.

20883017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294198.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 20883017 is about 4569.7939778506. The cubic root of 20883017 is about 275.3791662267.

The spelling of 20883017 in words is "twenty million, eight hundred eighty-three thousand, seventeen".