8398849 has 4 divisors (see below), whose sum is σ = 8436736. Its totient is φ = 8360964.

The previous prime is 8398811. The next prime is 8398877. The reversal of 8398849 is 9488938.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9488938 = 2 ⋅4744469.

It is a cyclic number.

It is not a de Polignac number, because 8398849 - 2⁷ = 8398721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8398879) 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, 18609 + ... + 19054.

It is an arithmetic number, because the mean of its divisors is an integer number (2109184).

Almost surely, 2^8398849 is an apocalyptic number.

It is an amenable number.

8398849 is a deficient number, since it is larger than the sum of its proper divisors (37887).

8398849 is a wasteful number, since it uses less digits than its factorization.

8398849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37886.

The product of its digits is 497664, while the sum is 49.

The square root of 8398849 is about 2898.0767760706. The cubic root of 8398849 is about 203.2699862388.

The spelling of 8398849 in words is "eight million, three hundred ninety-eight thousand, eight hundred forty-nine".