8009221679 has 8 divisors (see below), whose sum is σ = 8486795808. Its totient is φ = 7532363520.

The previous prime is 8009221663. The next prime is 8009221709. The reversal of 8009221679 is 9761229008.

It is a happy number.

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 8009221679 - 2⁴ = 8009221663 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 (8009221609) 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, 155867 + ... + 200780.

It is an arithmetic number, because the mean of its divisors is an integer number (1060849476).

Almost surely, 2^8009221679 is an apocalyptic number.

8009221679 is a deficient number, since it is larger than the sum of its proper divisors (477574129).

8009221679 is a wasteful number, since it uses less digits than its factorization.

8009221679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357985.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 8009221679 is about 89494.2550055589. The cubic root of 8009221679 is about 2000.7681781634.

The spelling of 8009221679 in words is "eight billion, nine million, two hundred twenty-one thousand, six hundred seventy-nine".