20724327 has 12 divisors (see below), whose sum is σ = 32238024. Its totient is φ = 12753360.

The previous prime is 20724287. The next prime is 20724349. The reversal of 20724327 is 72342702.

It is a de Polignac number, because none of the positive numbers 2^k-20724327 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20724327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20724367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88449 + ... + 88682.

It is an arithmetic number, because the mean of its divisors is an integer number (2686502).

Almost surely, 2^20724327 is an apocalyptic number.

20724327 is a deficient number, since it is larger than the sum of its proper divisors (11513697).

20724327 is a wasteful number, since it uses less digits than its factorization.

20724327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177150 (or 177147 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 20724327 is about 4552.3979395479. The cubic root of 20724327 is about 274.6798566484.

The spelling of 20724327 in words is "twenty million, seven hundred twenty-four thousand, three hundred twenty-seven".