8398867 has 4 divisors (see below), whose sum is σ = 8892936. Its totient is φ = 7904800.

The previous prime is 8398811. The next prime is 8398877. The reversal of 8398867 is 7688938.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7688938 = 2 ⋅3844469.

It is a cyclic number.

It is not a de Polignac number, because 8398867 - 2⁷ = 8398739 is a prime.

It is a Duffinian number.

8398867 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8398867.

It is not an unprimeable number, because it can be changed into a prime (8398877) 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, 247009 + ... + 247042.

It is an arithmetic number, because the mean of its divisors is an integer number (2223234).

Almost surely, 2^8398867 is an apocalyptic number.

8398867 is a deficient number, since it is larger than the sum of its proper divisors (494069).

8398867 is a wasteful number, since it uses less digits than its factorization.

8398867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494068.

The product of its digits is 580608, while the sum is 49.

The square root of 8398867 is about 2898.0798815768. The cubic root of 8398867 is about 203.2701314515.

The spelling of 8398867 in words is "eight million, three hundred ninety-eight thousand, eight hundred sixty-seven".