920666099 has 2 divisors, whose sum is σ = 920666100. Its totient is φ = 920666098.

The previous prime is 920666081. The next prime is 920666113. The reversal of 920666099 is 990666029.

It is a strong prime.

It is an emirp because it is prime and its reverse (990666029) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 920666099 - 2¹² = 920662003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (920666039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460333049 + 460333050.

It is an arithmetic number, because the mean of its divisors is an integer number (460333050).

Almost surely, 2^920666099 is an apocalyptic number.

920666099 is a deficient number, since it is larger than the sum of its proper divisors (1).

920666099 is an equidigital number, since it uses as much as digits as its factorization.

920666099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 920666099 is about 30342.4801062800. The cubic root of 920666099 is about 972.8234943918.

The spelling of 920666099 in words is "nine hundred twenty million, six hundred sixty-six thousand, ninety-nine".