8394540782 has 8 divisors (see below), whose sum is σ = 13139281296. Its totient is φ = 4014780352.

The previous prime is 8394540743. The next prime is 8394540793. The reversal of 8394540782 is 2870454938.

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

It is a super-2 number, since 2×8394540782² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8394540782.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91244963 + ... + 91245054.

It is an arithmetic number, because the mean of its divisors is an integer number (1642410162).

Almost surely, 2^8394540782 is an apocalyptic number.

8394540782 is a deficient number, since it is larger than the sum of its proper divisors (4744740514).

8394540782 is a wasteful number, since it uses less digits than its factorization.

8394540782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182490042.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The square root of 8394540782 is about 91621.7265827271. The cubic root of 8394540782 is about 2032.3522428541.

The spelling of 8394540782 in words is "eight billion, three hundred ninety-four million, five hundred forty thousand, seven hundred eighty-two".