12690695 has 4 divisors (see below), whose sum is σ = 15228840. Its totient is φ = 10152552.

The previous prime is 12690683. The next prime is 12690697. The reversal of 12690695 is 59609621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59609621 = 31 ⋅1922891.

It is a cyclic number.

It is not a de Polignac number, because 12690695 - 2⁴ = 12690679 is a prime.

It is a super-2 number, since 2×12690695² = 322107479166050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269065 + ... + 1269074.

It is an arithmetic number, because the mean of its divisors is an integer number (3807210).

Almost surely, 2^12690695 is an apocalyptic number.

12690695 is a deficient number, since it is larger than the sum of its proper divisors (2538145).

12690695 is an equidigital number, since it uses as much as digits as its factorization.

12690695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538144.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 12690695 is about 3562.4001740400. The cubic root of 12690695 is about 233.2536610074.

The spelling of 12690695 in words is "twelve million, six hundred ninety thousand, six hundred ninety-five".