20856327 has 8 divisors (see below), whose sum is σ = 28264560. Its totient is φ = 13676160.

The previous prime is 20856317. The next prime is 20856347. The reversal of 20856327 is 72365802.

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

It is not a de Polignac number, because 20856327 - 2¹¹ = 20854279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20856317) 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, 56802 + ... + 57167.

It is an arithmetic number, because the mean of its divisors is an integer number (3533070).

Almost surely, 2^20856327 is an apocalyptic number.

20856327 is a deficient number, since it is larger than the sum of its proper divisors (7408233).

20856327 is a wasteful number, since it uses less digits than its factorization.

20856327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114033.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20856327 is about 4566.8727812366. The cubic root of 20856327 is about 275.2617980739.

The spelling of 20856327 in words is "twenty million, eight hundred fifty-six thousand, three hundred twenty-seven".