847402099 has 2 divisors, whose sum is σ = 847402100. Its totient is φ = 847402098.

The previous prime is 847402097. The next prime is 847402103. The reversal of 847402099 is 990204748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 847402099 - 2¹ = 847402097 is a prime.

Together with 847402097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (847402091) 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, 423701049 + 423701050.

It is an arithmetic number, because the mean of its divisors is an integer number (423701050).

Almost surely, 2^847402099 is an apocalyptic number.

847402099 is a deficient number, since it is larger than the sum of its proper divisors (1).

847402099 is an equidigital number, since it uses as much as digits as its factorization.

847402099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 847402099 is about 29110.1717445981. The cubic root of 847402099 is about 946.3021899298.

The spelling of 847402099 in words is "eight hundred forty-seven million, four hundred two thousand, ninety-nine".