8444609253 has 6 divisors (see below), whose sum is σ = 12197768934. Its totient is φ = 5629739496.

The previous prime is 8444609213. The next prime is 8444609263. The reversal of 8444609253 is 3529064448.

It can be written as a sum of positive squares in only one way, i.e., 4839567489 + 3605041764 = 69567^2 + 60042^2 .

It is not a de Polignac number, because 8444609253 - 2⁹ = 8444608741 is a prime.

It is a super-2 number, since 2×8444609253² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8444609199 and 8444609208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8444609213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469144950 + ... + 469144967.

It is an arithmetic number, because the mean of its divisors is an integer number (2032961489).

Almost surely, 2^8444609253 is an apocalyptic number.

It is an amenable number.

8444609253 is a deficient number, since it is larger than the sum of its proper divisors (3753159681).

8444609253 is a wasteful number, since it uses less digits than its factorization.

8444609253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938289923 (or 938289920 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 8444609253 is about 91894.5550780894. Note that the first 3 decimals coincide. The cubic root of 8444609253 is about 2036.3848291644.

The spelling of 8444609253 in words is "eight billion, four hundred forty-four million, six hundred nine thousand, two hundred fifty-three".