920099839 has 2 divisors, whose sum is σ = 920099840. Its totient is φ = 920099838.

The previous prime is 920099837. The next prime is 920099879. The reversal of 920099839 is 938990029.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 920099839 - 2¹ = 920099837 is a prime.

Together with 920099837, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 920099792 and 920099801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920099837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460049919 + 460049920.

It is an arithmetic number, because the mean of its divisors is an integer number (460049920).

Almost surely, 2^920099839 is an apocalyptic number.

920099839 is a deficient number, since it is larger than the sum of its proper divisors (1).

920099839 is an equidigital number, since it uses as much as digits as its factorization.

920099839 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 49.

The square root of 920099839 is about 30333.1475287350. The cubic root of 920099839 is about 972.6240069375.

The spelling of 920099839 in words is "nine hundred twenty million, ninety-nine thousand, eight hundred thirty-nine".