12989496 has 128 divisors (see below), whose sum is σ = 38707200. Its totient is φ = 3594240.

The previous prime is 12989453. The next prime is 12989507. The reversal of 12989496 is 69498921.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164385 + ... + 164463.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^12989496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12989496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19353600).

12989496 is an abundant number, since it is smaller than the sum of its proper divisors (25717704).

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

12989496 is a wasteful number, since it uses less digits than its factorization.

12989496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 145 counting only the distinct ones).

The product of its digits is 279936, while the sum is 48.

The square root of 12989496 is about 3604.0943383879. The cubic root of 12989496 is about 235.0701224268.

The spelling of 12989496 in words is "twelve million, nine hundred eighty-nine thousand, four hundred ninety-six".