20350017 has 12 divisors (see below), whose sum is σ = 29607760. Its totient is φ = 13468248.

The previous prime is 20349997. The next prime is 20350049. The reversal of 20350017 is 71005302.

It is not a de Polignac number, because 20350017 - 2¹² = 20345921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20350067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6883 + ... + 9384.

Almost surely, 2^20350017 is an apocalyptic number.

It is an amenable number.

20350017 is a deficient number, since it is larger than the sum of its proper divisors (9257743).

20350017 is a wasteful number, since it uses less digits than its factorization.

20350017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16412 (or 16409 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 20350017 is about 4511.0993116978. The cubic root of 20350017 is about 273.0161001655.

Adding to 20350017 its reverse (71005302), we get a palindrome (91355319).

The spelling of 20350017 in words is "twenty million, three hundred fifty thousand, seventeen".