20676017 has 2 divisors, whose sum is σ = 20676018. Its totient is φ = 20676016.

The previous prime is 20675983. The next prime is 20676031. The reversal of 20676017 is 71067602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11771761 + 8904256 = 3431^2 + 2984^2 .

It is a cyclic number.

It is not a de Polignac number, because 20676017 - 2⁶ = 20675953 is a prime.

It is not a weakly prime, because it can be changed into another prime (20676037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10338008 + 10338009.

It is an arithmetic number, because the mean of its divisors is an integer number (10338009).

Almost surely, 2^20676017 is an apocalyptic number.

It is an amenable number.

20676017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20676017 is an equidigital number, since it uses as much as digits as its factorization.

20676017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 20676017 is about 4547.0888489230. The cubic root of 20676017 is about 274.4662573003.

The spelling of 20676017 in words is "twenty million, six hundred seventy-six thousand, seventeen".