845909353 has 2 divisors, whose sum is σ = 845909354. Its totient is φ = 845909352.

The previous prime is 845909347. The next prime is 845909401. The reversal of 845909353 is 353909548.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488056464 + 357852889 = 22092^2 + 18917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-845909353 is a prime.

It is not a weakly prime, because it can be changed into another prime (845909653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422954676 + 422954677.

It is an arithmetic number, because the mean of its divisors is an integer number (422954677).

Almost surely, 2^845909353 is an apocalyptic number.

It is an amenable number.

845909353 is a deficient number, since it is larger than the sum of its proper divisors (1).

845909353 is an equidigital number, since it uses as much as digits as its factorization.

845909353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 845909353 is about 29084.5208487264. The cubic root of 845909353 is about 945.7462086649.

The spelling of 845909353 in words is "eight hundred forty-five million, nine hundred nine thousand, three hundred fifty-three".