20606099 has 2 divisors, whose sum is σ = 20606100. Its totient is φ = 20606098.

The previous prime is 20606083. The next prime is 20606119. The reversal of 20606099 is 99060602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20606099 - 2⁴ = 20606083 is a prime.

It is a super-2 number, since 2×20606099² = 849222631995602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20606009) 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, 10303049 + 10303050.

It is an arithmetic number, because the mean of its divisors is an integer number (10303050).

Almost surely, 2^20606099 is an apocalyptic number.

20606099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20606099 is an equidigital number, since it uses as much as digits as its factorization.

20606099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 20606099 is about 4539.3941225675. The cubic root of 20606099 is about 274.1565296318.

The spelling of 20606099 in words is "twenty million, six hundred six thousand, ninety-nine".