12709830 has 64 divisors (see below), whose sum is σ = 36080640. Its totient is φ = 2803584.

The previous prime is 12709817. The next prime is 12709847. The reversal of 12709830 is 3890721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 5047 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (563760).

Almost surely, 2^12709830 is an apocalyptic number.

12709830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12709830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18040320).

12709830 is an abundant number, since it is smaller than the sum of its proper divisors (23370810).

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

12709830 is a wasteful number, since it uses less digits than its factorization.

12709830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 12709830 is about 3565.0848517251. The cubic root of 12709830 is about 233.3708352421.

The spelling of 12709830 in words is "twelve million, seven hundred nine thousand, eight hundred thirty".