8398460687 has 4 divisors (see below), whose sum is σ = 8399848320. Its totient is φ = 8397073056.

The previous prime is 8398460647. The next prime is 8398460701. The reversal of 8398460687 is 7860648938.

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 8398460687 - 2²⁸ = 8130025231 is a prime.

It is a super-2 number, since 2×8398460687² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8398460627) 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 in 3 ways as a sum of consecutive naturals, for example, 684698 + ... + 696855.

It is an arithmetic number, because the mean of its divisors is an integer number (2099962080).

Almost surely, 2^8398460687 is an apocalyptic number.

8398460687 is a deficient number, since it is larger than the sum of its proper divisors (1387633).

8398460687 is a wasteful number, since it uses less digits than its factorization.

8398460687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387632.

The product of its (nonzero) digits is 13934592, while the sum is 59.

The square root of 8398460687 is about 91643.1158734796. The cubic root of 8398460687 is about 2032.6685352405.

The spelling of 8398460687 in words is "eight billion, three hundred ninety-eight million, four hundred sixty thousand, six hundred eighty-seven".