20281327 has 4 divisors (see below), whose sum is σ = 22125096. Its totient is φ = 18437560.

The previous prime is 20281321. The next prime is 20281333. The reversal of 20281327 is 72318202.

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

It is an interprime number because it is at equal distance from previous prime (20281321) and next prime (20281333).

It is a cyclic number.

It is not a de Polignac number, because 20281327 - 2³ = 20281319 is a prime.

It is a super-2 number, since 2×20281327² = 822664449761858, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20281321) 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, 921868 + ... + 921889.

It is an arithmetic number, because the mean of its divisors is an integer number (5531274).

Almost surely, 2^20281327 is an apocalyptic number.

20281327 is a deficient number, since it is larger than the sum of its proper divisors (1843769).

20281327 is a wasteful number, since it uses less digits than its factorization.

20281327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843768.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20281327 is about 4503.4794326165. The cubic root of 20281327 is about 272.7085719063.

Adding to 20281327 its reverse (72318202), we get a palindrome (92599529).

The spelling of 20281327 in words is "twenty million, two hundred eighty-one thousand, three hundred twenty-seven".