12791930 has 8 divisors (see below), whose sum is σ = 23025492. Its totient is φ = 5116768.

The previous prime is 12791893. The next prime is 12791951. The reversal of 12791930 is 3919721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 182329 = 3551^2 + 427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639587 + ... + 639606.

Almost surely, 2^12791930 is an apocalyptic number.

12791930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12791930 is a deficient number, since it is larger than the sum of its proper divisors (10233562).

12791930 is a wasteful number, since it uses less digits than its factorization.

12791930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279200.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12791930 is about 3576.5807693941. The cubic root of 12791930 is about 233.8722486739.

The spelling of 12791930 in words is "twelve million, seven hundred ninety-one thousand, nine hundred thirty".