12597966 has 48 divisors (see below), whose sum is σ = 28574208. Its totient is φ = 4006800.

The previous prime is 12597961. The next prime is 12597967. The reversal of 12597966 is 66979521.

12597966 = T₄₂₈ + T₄₂₉ + ... + T₅₃₅.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12597961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59601 + ... + 59811.

It is an arithmetic number, because the mean of its divisors is an integer number (595296).

Almost surely, 2^12597966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12597966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14287104).

12597966 is an abundant number, since it is smaller than the sum of its proper divisors (15976242).

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

12597966 is a wasteful number, since it uses less digits than its factorization.

12597966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 354 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 12597966 is about 3549.3613510039. The cubic root of 12597966 is about 232.6841551738.

The spelling of 12597966 in words is "twelve million, five hundred ninety-seven thousand, nine hundred sixty-six".