20802883 has 8 divisors (see below), whose sum is σ = 22329648. Its totient is φ = 19309824.

The previous prime is 20802857. The next prime is 20802907. The reversal of 20802883 is 38820802.

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

It is not a de Polignac number, because 20802883 - 2⁹ = 20802371 is a prime.

It is a super-2 number, since 2×20802883² = 865519882223378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20802823) 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, 7141 + ... + 9622.

It is an arithmetic number, because the mean of its divisors is an integer number (2791206).

Almost surely, 2^20802883 is an apocalyptic number.

20802883 is a deficient number, since it is larger than the sum of its proper divisors (1526765).

20802883 is a wasteful number, since it uses less digits than its factorization.

20802883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16853.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 20802883 is about 4561.0177592287. The cubic root of 20802883 is about 275.0264789930.

The spelling of 20802883 in words is "twenty million, eight hundred two thousand, eight hundred eighty-three".