20790167 has 8 divisors (see below), whose sum is σ = 22342896. Its totient is φ = 19274112.

The previous prime is 20790163. The next prime is 20790173. The reversal of 20790167 is 76109702.

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 20790167 - 2² = 20790163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20790163) 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, 7988 + ... + 10265.

It is an arithmetic number, because the mean of its divisors is an integer number (2792862).

Almost surely, 2^20790167 is an apocalyptic number.

20790167 is a deficient number, since it is larger than the sum of its proper divisors (1552729).

20790167 is a wasteful number, since it uses less digits than its factorization.

20790167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18337.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 20790167 is about 4559.6235590233. The cubic root of 20790167 is about 274.9704298784.

Adding to 20790167 its reverse (76109702), we get a palindrome (96899869).

The spelling of 20790167 in words is "twenty million, seven hundred ninety thousand, one hundred sixty-seven".