20467017 has 12 divisors (see below), whose sum is σ = 29633604. Its totient is φ = 13612320.

The previous prime is 20466989. The next prime is 20467061. The reversal of 20467017 is 71076402.

It can be written as a sum of positive squares in 2 ways, for example, as 6471936 + 13995081 = 2544^2 + 3741^2 .

It is not a de Polignac number, because 20467017 - 2⁷ = 20466889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20462017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1683 + ... + 6615.

It is an arithmetic number, because the mean of its divisors is an integer number (2469467).

Almost surely, 2^20467017 is an apocalyptic number.

It is an amenable number.

20467017 is a deficient number, since it is larger than the sum of its proper divisors (9166587).

20467017 is a wasteful number, since it uses less digits than its factorization.

20467017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400 (or 5397 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20467017 is about 4524.0487397905. The cubic root of 20467017 is about 273.5383251385.

The spelling of 20467017 in words is "twenty million, four hundred sixty-seven thousand, seventeen".