12977930 has 32 divisors (see below), whose sum is σ = 26822016. Its totient is φ = 4428864.

The previous prime is 12977929. The next prime is 12977947. The reversal of 12977930 is 3977921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27557 + ... + 28023.

It is an arithmetic number, because the mean of its divisors is an integer number (838188).

Almost surely, 2^12977930 is an apocalyptic number.

12977930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12977930 is an abundant number, since it is smaller than the sum of its proper divisors (13844086).

12977930 is a wasteful number, since it uses less digits than its factorization.

12977930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 12977930 is about 3602.4894170559. The cubic root of 12977930 is about 235.0003319748. Note that the first 3 decimals are identical.

Subtracting from 12977930 its reverse (3977921), we obtain a palindrome (9000009).

The spelling of 12977930 in words is "twelve million, nine hundred seventy-seven thousand, nine hundred thirty".