20730827 has 8 divisors (see below), whose sum is σ = 22595664. Its totient is φ = 18904608.

The previous prime is 20730823. The next prime is 20730839. The reversal of 20730827 is 72803702.

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

It is a cyclic number.

It is not a de Polignac number, because 20730827 - 2² = 20730823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20730827.

It is not an unprimeable number, because it can be changed into a prime (20730823) 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, 8528 + ... + 10685.

It is an arithmetic number, because the mean of its divisors is an integer number (2824458).

Almost surely, 2^20730827 is an apocalyptic number.

20730827 is a deficient number, since it is larger than the sum of its proper divisors (1864837).

20730827 is a wasteful number, since it uses less digits than its factorization.

20730827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 20730827 is about 4553.1117930488. Note that the first 3 decimals coincide. The cubic root of 20730827 is about 274.7085706076.

The spelling of 20730827 in words is "twenty million, seven hundred thirty thousand, eight hundred twenty-seven".