12787930 has 16 divisors (see below), whose sum is σ = 23063040. Its totient is φ = 5105232.

The previous prime is 12787919. The next prime is 12787937. The reversal of 12787930 is 3978721.

It is a self number, because there is not a number n which added to its sum of digits gives 12787930.

It is not an unprimeable number, because it can be changed into a prime (12787937) 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, 6391 + ... + 8149.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^12787930 is an apocalyptic number.

12787930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12787930 is a deficient number, since it is larger than the sum of its proper divisors (10275110).

12787930 is a wasteful number, since it uses less digits than its factorization.

12787930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 12787930 is about 3576.0215323737. The cubic root of 12787930 is about 233.8478690710.

The spelling of 12787930 in words is "twelve million, seven hundred eighty-seven thousand, nine hundred thirty".