12817330 has 16 divisors (see below), whose sum is σ = 23174424. Its totient is φ = 5104000.

The previous prime is 12817307. The next prime is 12817339. The reversal of 12817330 is 3371821.

12817330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11716929 + 1100401 = 3423^2 + 1049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12817295 and 12817304.

It is not an unprimeable number, because it can be changed into a prime (12817339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421 + ... + 5080.

Almost surely, 2^12817330 is an apocalyptic number.

12817330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12817330 is a deficient number, since it is larger than the sum of its proper divisors (10357094).

12817330 is a wasteful number, since it uses less digits than its factorization.

12817330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5741.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12817330 is about 3580.1298859120. The cubic root of 12817330 is about 234.0269406730.

The spelling of 12817330 in words is "twelve million, eight hundred seventeen thousand, three hundred thirty".