12791486 has 4 divisors (see below), whose sum is σ = 19187232. Its totient is φ = 6395742.

The previous prime is 12791483. The next prime is 12791489. The reversal of 12791486 is 68419721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68419721 = 5573 ⋅12277.

It is an interprime number because it is at equal distance from previous prime (12791483) and next prime (12791489).

It is a super-2 number, since 2×12791486² = 327244228176392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3197870 + ... + 3197873.

It is an arithmetic number, because the mean of its divisors is an integer number (4796808).

Almost surely, 2^12791486 is an apocalyptic number.

12791486 is a deficient number, since it is larger than the sum of its proper divisors (6395746).

12791486 is an equidigital number, since it uses as much as digits as its factorization.

12791486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395745.

The product of its digits is 24192, while the sum is 38.

The square root of 12791486 is about 3576.5186983993. The cubic root of 12791486 is about 233.8695427888.

The spelling of 12791486 in words is "twelve million, seven hundred ninety-one thousand, four hundred eighty-six".