20327205 has 16 divisors (see below), whose sum is σ = 32707584. Its totient is φ = 10779840.

The previous prime is 20327191. The next prime is 20327233. The reversal of 20327205 is 50272302.

It is not a de Polignac number, because 20327205 - 2¹⁸ = 20065061 is a prime.

It is a super-2 number, since 2×20327205² = 826390526224050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1029 + ... + 6458.

It is an arithmetic number, because the mean of its divisors is an integer number (2044224).

Almost surely, 2^20327205 is an apocalyptic number.

It is an amenable number.

20327205 is a deficient number, since it is larger than the sum of its proper divisors (12380379).

20327205 is a wasteful number, since it uses less digits than its factorization.

20327205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7676.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20327205 is about 4508.5701724604. The cubic root of 20327205 is about 272.9140466569.

Adding to 20327205 its reverse (50272302), we get a palindrome (70599507).

The spelling of 20327205 in words is "twenty million, three hundred twenty-seven thousand, two hundred five".