12791630 has 8 divisors (see below), whose sum is σ = 23024952. Its totient is φ = 5116648.

The previous prime is 12791627. The next prime is 12791659. The reversal of 12791630 is 3619721.

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

It is a junction number, because it is equal to n+sod(n) for n = 12791593 and 12791602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639572 + ... + 639591.

It is an arithmetic number, because the mean of its divisors is an integer number (2878119).

Almost surely, 2^12791630 is an apocalyptic number.

12791630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12791630 is a deficient number, since it is larger than the sum of its proper divisors (10233322).

12791630 is a wasteful number, since it uses less digits than its factorization.

12791630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279170.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 12791630 is about 3576.5388296508. The cubic root of 12791630 is about 233.8704203800.

The spelling of 12791630 in words is "twelve million, seven hundred ninety-one thousand, six hundred thirty".