20802027 has 8 divisors (see below), whose sum is σ = 27757120. Its totient is φ = 13857480.

The previous prime is 20802011. The next prime is 20802049. The reversal of 20802027 is 72020802.

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

It is not a de Polignac number, because 20802027 - 2⁴ = 20802011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20801994 and 20802012.

It is not an unprimeable number, because it can be changed into a prime (20802427) 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, 6252 + ... + 8982.

It is an arithmetic number, because the mean of its divisors is an integer number (3469640).

Almost surely, 2^20802027 is an apocalyptic number.

20802027 is a deficient number, since it is larger than the sum of its proper divisors (6955093).

20802027 is a wasteful number, since it uses less digits than its factorization.

20802027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5273.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 20802027 is about 4560.9239195584. The cubic root of 20802027 is about 275.0227066650.

Adding to 20802027 its reverse (72020802), we get a palindrome (92822829).

The spelling of 20802027 in words is "twenty million, eight hundred two thousand, twenty-seven".