921850099 has 2 divisors, whose sum is σ = 921850100. Its totient is φ = 921850098.

The previous prime is 921850093. The next prime is 921850123. The reversal of 921850099 is 990058129.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 921850099 - 2³ = 921850091 is a prime.

It is equal to p_47069269 and since 921850099 and 47069269 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (921850091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460925049 + 460925050.

It is an arithmetic number, because the mean of its divisors is an integer number (460925050).

Almost surely, 2^921850099 is an apocalyptic number.

921850099 is a deficient number, since it is larger than the sum of its proper divisors (1).

921850099 is an equidigital number, since it uses as much as digits as its factorization.

921850099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 921850099 is about 30361.9844377801. The cubic root of 921850099 is about 973.2403409964.

The spelling of 921850099 in words is "nine hundred twenty-one million, eight hundred fifty thousand, ninety-nine".