20327747 has 8 divisors (see below), whose sum is σ = 22351872. Its totient is φ = 18333000.

The previous prime is 20327729. The next prime is 20327761. The reversal of 20327747 is 74772302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20327747 - 2⁸ = 20327491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20327707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 8672.

It is an arithmetic number, because the mean of its divisors is an integer number (2793984).

Almost surely, 2^20327747 is an apocalyptic number.

20327747 is a deficient number, since it is larger than the sum of its proper divisors (2024125).

20327747 is a wasteful number, since it uses less digits than its factorization.

20327747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689.

The product of its (nonzero) digits is 16464, while the sum is 32.

The square root of 20327747 is about 4508.6302798078. The cubic root of 20327747 is about 272.9164722749.

It can be divided in two parts, 2032 and 7747, that added together give a palindrome (9779).

The spelling of 20327747 in words is "twenty million, three hundred twenty-seven thousand, seven hundred forty-seven".