8385620543 has 4 divisors (see below), whose sum is σ = 8385870768. Its totient is φ = 8385370320.

The previous prime is 8385620527. The next prime is 8385620563. The reversal of 8385620543 is 3450265838.

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 8385620543 - 2⁴ = 8385620527 is a prime.

It is a super-2 number, since 2×8385620543² (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 = 8385620494 and 8385620503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8385620513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65318 + ... + 145043.

It is an arithmetic number, because the mean of its divisors is an integer number (2096467692).

Almost surely, 2^8385620543 is an apocalyptic number.

8385620543 is a deficient number, since it is larger than the sum of its proper divisors (250225).

8385620543 is a wasteful number, since it uses less digits than its factorization.

8385620543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250224.

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 8385620543 is about 91573.0339292087. The cubic root of 8385620543 is about 2031.6321124160.

The spelling of 8385620543 in words is "eight billion, three hundred eighty-five million, six hundred twenty thousand, five hundred forty-three".