12989652 has 24 divisors (see below), whose sum is σ = 32641056. Its totient is φ = 3996768.

The previous prime is 12989629. The next prime is 12989653. The reversal of 12989652 is 25698921.

It is a super-2 number, since 2×12989652² = 337462118162208, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12989653) 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 7 ways as a sum of consecutive naturals, for example, 41478 + ... + 41789.

It is an arithmetic number, because the mean of its divisors is an integer number (1360044).

Almost surely, 2^12989652 is an apocalyptic number.

12989652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12989652 is an abundant number, since it is smaller than the sum of its proper divisors (19651404).

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

12989652 is a wasteful number, since it uses less digits than its factorization.

12989652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83287 (or 83285 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 12989652 is about 3604.1159803758. The cubic root of 12989652 is about 235.0710634639.

The spelling of 12989652 in words is "twelve million, nine hundred eighty-nine thousand, six hundred fifty-two".