8398640607 has 16 divisors (see below), whose sum is σ = 13070226432. Its totient is φ = 4697111520.

The previous prime is 8398640597. The next prime is 8398640609. The reversal of 8398640607 is 7060468938.

It is not a de Polignac number, because 8398640607 - 2⁷ = 8398640479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8398640607.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4253644 + ... + 4255617.

It is an arithmetic number, because the mean of its divisors is an integer number (816889152).

Almost surely, 2^8398640607 is an apocalyptic number.

8398640607 is a deficient number, since it is larger than the sum of its proper divisors (4671585825).

8398640607 is a wasteful number, since it uses less digits than its factorization.

8398640607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8509318.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 8398640607 is about 91644.0975022396. The cubic root of 8398640607 is about 2032.6830504049.

The spelling of 8398640607 in words is "eight billion, three hundred ninety-eight million, six hundred forty thousand, six hundred seven".