12690079 has 4 divisors (see below), whose sum is σ = 12697776. Its totient is φ = 12682384.

The previous prime is 12690077. The next prime is 12690103. The reversal of 12690079 is 97009621.

12690079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12690079 - 2¹ = 12690077 is a prime.

It is a super-2 number, since 2×12690079² = 322076210052482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690071) 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, 259 + ... + 5044.

It is an arithmetic number, because the mean of its divisors is an integer number (3174444).

Almost surely, 2^12690079 is an apocalyptic number.

12690079 is a deficient number, since it is larger than the sum of its proper divisors (7697).

12690079 is an equidigital number, since it uses as much as digits as its factorization.

12690079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 12690079 is about 3562.3137144277. The cubic root of 12690079 is about 233.2498869409.

The spelling of 12690079 in words is "twelve million, six hundred ninety thousand, seventy-nine".