20869327 has 4 divisors (see below), whose sum is σ = 21076056. Its totient is φ = 20662600.

The previous prime is 20869309. The next prime is 20869337. The reversal of 20869327 is 72396802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20869327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20869307) 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, 103213 + ... + 103414.

It is an arithmetic number, because the mean of its divisors is an integer number (5269014).

Almost surely, 2^20869327 is an apocalyptic number.

20869327 is a deficient number, since it is larger than the sum of its proper divisors (206729).

20869327 is a wasteful number, since it uses less digits than its factorization.

20869327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206728.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 20869327 is about 4568.2958529412. The cubic root of 20869327 is about 275.3189775275.

The spelling of 20869327 in words is "twenty million, eight hundred sixty-nine thousand, three hundred twenty-seven".