845646499 has 2 divisors, whose sum is σ = 845646500. Its totient is φ = 845646498.

The previous prime is 845646493. The next prime is 845646511. The reversal of 845646499 is 994646548.

845646499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 845646499 - 2⁹ = 845645987 is a prime.

It is not a weakly prime, because it can be changed into another prime (845646493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422823249 + 422823250.

It is an arithmetic number, because the mean of its divisors is an integer number (422823250).

Almost surely, 2^845646499 is an apocalyptic number.

845646499 is a deficient number, since it is larger than the sum of its proper divisors (1).

845646499 is an equidigital number, since it uses as much as digits as its factorization.

845646499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 55.

The square root of 845646499 is about 29080.0017022008. The cubic root of 845646499 is about 945.6482395675.

The spelling of 845646499 in words is "eight hundred forty-five million, six hundred forty-six thousand, four hundred ninety-nine".