8398640606 has 4 divisors (see below), whose sum is σ = 12597960912. Its totient is φ = 4199320302.

The previous prime is 8398640597. The next prime is 8398640609. The reversal of 8398640606 is 6060468938.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398640609) by changing a digit.

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 as a sum of consecutive naturals, namely, 2099660150 + ... + 2099660153.

It is an arithmetic number, because the mean of its divisors is an integer number (3149490228).

Almost surely, 2^8398640606 is an apocalyptic number.

8398640606 is a deficient number, since it is larger than the sum of its proper divisors (4199320306).

8398640606 is a wasteful number, since it uses less digits than its factorization.

8398640606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199320305.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The square root of 8398640606 is about 91644.0974967837. The cubic root of 8398640606 is about 2032.6830503242.

The spelling of 8398640606 in words is "eight billion, three hundred ninety-eight million, six hundred forty thousand, six hundred six".