20068999 has 2 divisors, whose sum is σ = 20069000. Its totient is φ = 20068998.

The previous prime is 20068991. The next prime is 20069017. The reversal of 20068999 is 99986002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20068999 - 2³ = 20068991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20068991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10034499 + 10034500.

It is an arithmetic number, because the mean of its divisors is an integer number (10034500).

Almost surely, 2^20068999 is an apocalyptic number.

20068999 is a deficient number, since it is larger than the sum of its proper divisors (1).

20068999 is an equidigital number, since it uses as much as digits as its factorization.

20068999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 20068999 is about 4479.8436356641. The cubic root of 20068999 is about 271.7535568765.

The spelling of 20068999 in words is "twenty million, sixty-eight thousand, nine hundred ninety-nine".