12709632 has 144 divisors (see below), whose sum is σ = 38917760. Its totient is φ = 3649536.

The previous prime is 12709607. The next prime is 12709633. The reversal of 12709632 is 23690721.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12709632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12709633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189663 + ... + 189729.

Almost surely, 2^12709632 is an apocalyptic number.

12709632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12709632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19458880).

12709632 is an abundant number, since it is smaller than the sum of its proper divisors (26208128).

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

12709632 is a wasteful number, since it uses less digits than its factorization.

12709632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 12709632 is about 3565.0570822920. The cubic root of 12709632 is about 233.3696233805.

The spelling of 12709632 in words is "twelve million, seven hundred nine thousand, six hundred thirty-two".