12197928 has 32 divisors (see below), whose sum is σ = 30592800. Its totient is φ = 4052928.

The previous prime is 12197921. The next prime is 12197947. The reversal of 12197928 is 82979121.

It is not an unprimeable number, because it can be changed into a prime (12197921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9450 + ... + 10662.

It is an arithmetic number, because the mean of its divisors is an integer number (956025).

Almost surely, 2^12197928 is an apocalyptic number.

It is an amenable number.

12197928 is an abundant number, since it is smaller than the sum of its proper divisors (18394872).

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

12197928 is a wasteful number, since it uses less digits than its factorization.

12197928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1637 counting only the distinct ones).

The product of its digits is 18144, while the sum is 39.

The square root of 12197928 is about 3492.5532207828. The cubic root of 12197928 is about 230.1947185322.

The spelling of 12197928 in words is "twelve million, one hundred ninety-seven thousand, nine hundred twenty-eight".