20766007 has 2 divisors, whose sum is σ = 20766008. Its totient is φ = 20766006.

The previous prime is 20765999. The next prime is 20766023. The reversal of 20766007 is 70066702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20766007 - 2³ = 20765999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20763007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10383003 + 10383004.

It is an arithmetic number, because the mean of its divisors is an integer number (10383004).

Almost surely, 2^20766007 is an apocalyptic number.

20766007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20766007 is an equidigital number, since it uses as much as digits as its factorization.

20766007 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 28.

The square root of 20766007 is about 4556.9734473661. The cubic root of 20766007 is about 274.8638753293.

The spelling of 20766007 in words is "twenty million, seven hundred sixty-six thousand, seven".