20170933 has 2 divisors, whose sum is σ = 20170934. Its totient is φ = 20170932.

The previous prime is 20170903. The next prime is 20170949. The reversal of 20170933 is 33907102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19731364 + 439569 = 4442^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 20170933 - 2⁵ = 20170901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20170898 and 20170907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20170903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10085466 + 10085467.

It is an arithmetic number, because the mean of its divisors is an integer number (10085467).

Almost surely, 2^20170933 is an apocalyptic number.

It is an amenable number.

20170933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20170933 is an equidigital number, since it uses as much as digits as its factorization.

20170933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 20170933 is about 4491.2061854250. The cubic root of 20170933 is about 272.2128749131.

The spelling of 20170933 in words is "twenty million, one hundred seventy thousand, nine hundred thirty-three".