8244689652 has 42 divisors (see below), whose sum is σ = 21632422098. Its totient is φ = 2748228912.

The previous prime is 8244689617. The next prime is 8244689653. The reversal of 8244689652 is 2569864428.

It can be written as a sum of positive squares in only one way, i.e., 7474294116 + 770395536 = 86454^2 + 27756^2 .

It is a super-2 number, since 2×8244689652² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8244689653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1410783 + ... + 1416614.

It is an arithmetic number, because the mean of its divisors is an integer number (515057669).

Almost surely, 2^8244689652 is an apocalyptic number.

It is an amenable number.

8244689652 is an abundant number, since it is smaller than the sum of its proper divisors (13387732446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8244689652 is a wasteful number, since it uses less digits than its factorization.

8244689652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827419 (or 2827402 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The square root of 8244689652 is about 90800.2734136853. The cubic root of 8244689652 is about 2020.1863740073.

The spelling of 8244689652 in words is "eight billion, two hundred forty-four million, six hundred eighty-nine thousand, six hundred fifty-two".