8006620543 has 4 divisors (see below), whose sum is σ = 8477598240. Its totient is φ = 7535642848.

The previous prime is 8006620541. The next prime is 8006620553. The reversal of 8006620543 is 3450266008.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8006620543 - 2¹ = 8006620541 is a prime.

It is a super-2 number, since 2×8006620543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8006620499 and 8006620508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8006620541) 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 3 ways as a sum of consecutive naturals, for example, 235488823 + ... + 235488856.

It is an arithmetic number, because the mean of its divisors is an integer number (2119399560).

Almost surely, 2^8006620543 is an apocalyptic number.

8006620543 is a deficient number, since it is larger than the sum of its proper divisors (470977697).

8006620543 is a wasteful number, since it uses less digits than its factorization.

8006620543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470977696.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 8006620543 is about 89479.7214065846. The cubic root of 8006620543 is about 2000.5515597936.

The spelling of 8006620543 in words is "eight billion, six million, six hundred twenty thousand, five hundred forty-three".