845786249 has 24 divisors (see below), whose sum is σ = 1077108480. Its totient is φ = 649978560.

The previous prime is 845786209. The next prime is 845786257. The reversal of 845786249 is 942687548.

It is not a de Polignac number, because 845786249 - 2¹⁶ = 845720713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845786249.

It is not an unprimeable number, because it can be changed into a prime (845786209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54992 + ... + 68670.

It is an arithmetic number, because the mean of its divisors is an integer number (44879520).

Almost surely, 2^845786249 is an apocalyptic number.

It is an amenable number.

845786249 is a deficient number, since it is larger than the sum of its proper divisors (231322231).

845786249 is a wasteful number, since it uses less digits than its factorization.

845786249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13781 (or 13770 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 53.

The square root of 845786249 is about 29082.4044569908. The cubic root of 845786249 is about 945.7003287334.

The spelling of 845786249 in words is "eight hundred forty-five million, seven hundred eighty-six thousand, two hundred forty-nine".