20287327 has 16 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 18870880.

The previous prime is 20287313. The next prime is 20287343. The reversal of 20287327 is 72378202.

It is not a de Polignac number, because 20287327 - 2⁷ = 20287199 is a prime.

It is a super-5 number, since 5×20287327⁵ (a number of 38 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20287367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121398 + ... + 121564.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^20287327 is an apocalyptic number.

20287327 is a deficient number, since it is larger than the sum of its proper divisors (1485473).

20287327 is a wasteful number, since it uses less digits than its factorization.

20287327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 20287327 is about 4504.1455349489. The cubic root of 20287327 is about 272.7354618315.

The spelling of 20287327 in words is "twenty million, two hundred eighty-seven thousand, three hundred twenty-seven".