20823027 has 12 divisors (see below), whose sum is σ = 29025864. Its totient is φ = 13277440.

The previous prime is 20823017. The next prime is 20823029. The reversal of 20823027 is 72032802.

It is not a de Polignac number, because 20823027 - 2¹⁹ = 20298739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20822988 and 20823006.

It is not an unprimeable number, because it can be changed into a prime (20823029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4974 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (2418822).

Almost surely, 2^20823027 is an apocalyptic number.

20823027 is a deficient number, since it is larger than the sum of its proper divisors (8202837).

20823027 is a wasteful number, since it uses less digits than its factorization.

20823027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13170 (or 13147 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20823027 is about 4563.2255039610. The cubic root of 20823027 is about 275.1152222397.

Adding to 20823027 its reverse (72032802), we get a palindrome (92855829).

The spelling of 20823027 in words is "twenty million, eight hundred twenty-three thousand, twenty-seven".