12997284 has 12 divisors (see below), whose sum is σ = 30327024. Its totient is φ = 4332424.

The previous prime is 12997279. The next prime is 12997289. The reversal of 12997284 is 48279921.

It is an interprime number because it is at equal distance from previous prime (12997279) and next prime (12997289).

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

It is not an unprimeable number, because it can be changed into a prime (12997289) 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, 541542 + ... + 541565.

It is an arithmetic number, because the mean of its divisors is an integer number (2527252).

Almost surely, 2^12997284 is an apocalyptic number.

It is an amenable number.

12997284 is an abundant number, since it is smaller than the sum of its proper divisors (17329740).

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

12997284 is a wasteful number, since it uses less digits than its factorization.

12997284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083114 (or 1083112 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 12997284 is about 3605.1746143564. The cubic root of 12997284 is about 235.1170926956.

The spelling of 12997284 in words is "twelve million, nine hundred ninety-seven thousand, two hundred eighty-four".