8211423653 has 8 divisors (see below), whose sum is σ = 8434513440. Its totient is φ = 7988394960.

The previous prime is 8211423611. The next prime is 8211423659. The reversal of 8211423653 is 3563241128.

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

It is a cyclic number.

It is not a de Polignac number, because 8211423653 - 2⁸ = 8211423397 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 (8211423659) 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, 433658 + ... + 452196.

It is an arithmetic number, because the mean of its divisors is an integer number (1054314180).

Almost surely, 2^8211423653 is an apocalyptic number.

It is an amenable number.

8211423653 is a deficient number, since it is larger than the sum of its proper divisors (223089787).

8211423653 is a wasteful number, since it uses less digits than its factorization.

8211423653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30547.

The product of its digits is 34560, while the sum is 35.

The square root of 8211423653 is about 90616.9059999292. The cubic root of 8211423653 is about 2017.4656689626.

The spelling of 8211423653 in words is "eight billion, two hundred eleven million, four hundred twenty-three thousand, six hundred fifty-three".