20299027 has 4 divisors (see below), whose sum is σ = 23198896. Its totient is φ = 17399160.

The previous prime is 20298997. The next prime is 20299039. The reversal of 20299027 is 72099202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20299027 - 2¹⁹ = 19774739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20299027.

It is not an unprimeable number, because it can be changed into a prime (20299627) 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, 1449924 + ... + 1449937.

It is an arithmetic number, because the mean of its divisors is an integer number (5799724).

Almost surely, 2^20299027 is an apocalyptic number.

20299027 is a deficient number, since it is larger than the sum of its proper divisors (2899869).

20299027 is an equidigital number, since it uses as much as digits as its factorization.

20299027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899868.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20299027 is about 4505.4441512464. Note that the first 3 decimals coincide. The cubic root of 20299027 is about 272.7878819404.

The spelling of 20299027 in words is "twenty million, two hundred ninety-nine thousand, twenty-seven".