8447506653 has 8 divisors (see below), whose sum is σ = 11264032288. Its totient is φ = 5631326064.

The previous prime is 8447506621. The next prime is 8447506673. The reversal of 8447506653 is 3566057448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8447506653 - 2⁵ = 8447506621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8447506673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22375 + ... + 131892.

It is an arithmetic number, because the mean of its divisors is an integer number (1408004036).

Almost surely, 2^8447506653 is an apocalyptic number.

It is an amenable number.

8447506653 is a deficient number, since it is larger than the sum of its proper divisors (2816525635).

8447506653 is a wasteful number, since it uses less digits than its factorization.

8447506653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172523.

The product of its (nonzero) digits is 2419200, while the sum is 48.

The square root of 8447506653 is about 91910.3185338839. The cubic root of 8447506653 is about 2036.6177014642.

The spelling of 8447506653 in words is "eight billion, four hundred forty-seven million, five hundred six thousand, six hundred fifty-three".