8447398 has 4 divisors (see below), whose sum is σ = 12671100. Its totient is φ = 4223698.

The previous prime is 8447389. The next prime is 8447399. The reversal of 8447398 is 8937448.

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 (8447399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111848 + ... + 2111851.

It is an arithmetic number, because the mean of its divisors is an integer number (3167775).

Almost surely, 2^8447398 is an apocalyptic number.

8447398 is a deficient number, since it is larger than the sum of its proper divisors (4223702).

8447398 is a wasteful number, since it uses less digits than its factorization.

8447398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223701.

The product of its digits is 193536, while the sum is 43.

The square root of 8447398 is about 2906.4407786845. The cubic root of 8447398 is about 203.6608969674.

The spelling of 8447398 in words is "eight million, four hundred forty-seven thousand, three hundred ninety-eight".