20865214 has 8 divisors (see below), whose sum is σ = 31590648. Its totient is φ = 10335000.

The previous prime is 20865203. The next prime is 20865217. The reversal of 20865214 is 41256802.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20865217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48537 + ... + 48964.

It is an arithmetic number, because the mean of its divisors is an integer number (3948831).

Almost surely, 2^20865214 is an apocalyptic number.

20865214 is a deficient number, since it is larger than the sum of its proper divisors (10725434).

20865214 is a wasteful number, since it uses less digits than its factorization.

20865214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97610.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 20865214 is about 4567.8456628919. The cubic root of 20865214 is about 275.3008893966.

The spelling of 20865214 in words is "twenty million, eight hundred sixty-five thousand, two hundred fourteen".