8220470591 has 8 divisors (see below), whose sum is σ = 8250912384. Its totient is φ = 8190086040.

The previous prime is 8220470579. The next prime is 8220470627. The reversal of 8220470591 is 1950740228.

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 8220470591 - 2²² = 8216276287 is a prime.

It is a super-2 number, since 2×8220470591² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220470561) 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 7 ways as a sum of consecutive naturals, for example, 284870 + ... + 312396.

It is an arithmetic number, because the mean of its divisors is an integer number (1031364048).

Almost surely, 2^8220470591 is an apocalyptic number.

8220470591 is a deficient number, since it is larger than the sum of its proper divisors (30441793).

8220470591 is a wasteful number, since it uses less digits than its factorization.

8220470591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28621.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 8220470591 is about 90666.8108571157. The cubic root of 8220470591 is about 2018.2063114580.

The spelling of 8220470591 in words is "eight billion, two hundred twenty million, four hundred seventy thousand, five hundred ninety-one".