8197428 has 12 divisors (see below), whose sum is σ = 19127360. Its totient is φ = 2732472.

The previous prime is 8197403. The next prime is 8197429. The reversal of 8197428 is 8247918.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8197429) 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, 341548 + ... + 341571.

Almost surely, 2^8197428 is an apocalyptic number.

It is an amenable number.

8197428 is an abundant number, since it is smaller than the sum of its proper divisors (10929932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8197428 is a wasteful number, since it uses less digits than its factorization.

8197428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683126 (or 683124 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The square root of 8197428 is about 2863.1150867543. The cubic root of 8197428 is about 201.6318819255.

The spelling of 8197428 in words is "eight million, one hundred ninety-seven thousand, four hundred twenty-eight".