845625329 has 2 divisors, whose sum is σ = 845625330. Its totient is φ = 845625328.

The previous prime is 845625311. The next prime is 845625349. The reversal of 845625329 is 923526548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664453729 + 181171600 = 25777^2 + 13460^2 .

It is a cyclic number.

It is not a de Polignac number, because 845625329 - 2⁸ = 845625073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845625329.

It is not a weakly prime, because it can be changed into another prime (845625349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422812664 + 422812665.

It is an arithmetic number, because the mean of its divisors is an integer number (422812665).

Almost surely, 2^845625329 is an apocalyptic number.

It is an amenable number.

845625329 is a deficient number, since it is larger than the sum of its proper divisors (1).

845625329 is an equidigital number, since it uses as much as digits as its factorization.

845625329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 845625329 is about 29079.6377040705. The cubic root of 845625329 is about 945.6403483505.

The spelling of 845625329 in words is "eight hundred forty-five million, six hundred twenty-five thousand, three hundred twenty-nine".