13606994 has 4 divisors (see below), whose sum is σ = 20410494. Its totient is φ = 6803496.

The previous prime is 13606991. The next prime is 13606997. The reversal of 13606994 is 49960631.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (13606991) and next prime (13606997).

It can be written as a sum of positive squares in only one way, i.e., 12694969 + 912025 = 3563^2 + 955^2 .

It is not an unprimeable number, because it can be changed into a prime (13606991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3401747 + ... + 3401750.

Almost surely, 2^13606994 is an apocalyptic number.

13606994 is a deficient number, since it is larger than the sum of its proper divisors (6803500).

13606994 is an equidigital number, since it uses as much as digits as its factorization.

13606994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6803499.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 13606994 is about 3688.7659182984. The cubic root of 13606994 is about 238.7375491255.

The spelling of 13606994 in words is "thirteen million, six hundred six thousand, nine hundred ninety-four".