20685201 has 8 divisors (see below), whose sum is σ = 27668544. Its totient is φ = 13746000.

The previous prime is 20685199. The next prime is 20685227. The reversal of 20685201 is 10258602.

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

It is not a de Polignac number, because 20685201 - 2¹ = 20685199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20685001) 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, 9925 + ... + 11826.

It is an arithmetic number, because the mean of its divisors is an integer number (3458568).

Almost surely, 2^20685201 is an apocalyptic number.

It is an amenable number.

20685201 is a deficient number, since it is larger than the sum of its proper divisors (6983343).

20685201 is a wasteful number, since it uses less digits than its factorization.

20685201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22071.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20685201 is about 4548.0986137066. The cubic root of 20685201 is about 274.5068893198.

The spelling of 20685201 in words is "twenty million, six hundred eighty-five thousand, two hundred one".