12695791 has 2 divisors, whose sum is σ = 12695792. Its totient is φ = 12695790.

The previous prime is 12695789. The next prime is 12695803. The reversal of 12695791 is 19759621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12695791 - 2¹ = 12695789 is a prime.

It is a super-2 number, since 2×12695791² = 322366218231362, which contains 22 as substring.

Together with 12695789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12690791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6347895 + 6347896.

It is an arithmetic number, because the mean of its divisors is an integer number (6347896).

Almost surely, 2^12695791 is an apocalyptic number.

12695791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12695791 is an equidigital number, since it uses as much as digits as its factorization.

12695791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 12695791 is about 3563.1153503641. The cubic root of 12695791 is about 233.2848781469.

The spelling of 12695791 in words is "twelve million, six hundred ninety-five thousand, seven hundred ninety-one".