13629706 has 4 divisors (see below), whose sum is σ = 20444562. Its totient is φ = 6814852.

The previous prime is 13629697. The next prime is 13629751. The reversal of 13629706 is 60792631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60792631 = 3041 ⋅19991.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 5248681 = 2895^2 + 2291^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3407425 + ... + 3407428.

Almost surely, 2^13629706 is an apocalyptic number.

13629706 is a deficient number, since it is larger than the sum of its proper divisors (6814856).

13629706 is an equidigital number, since it uses as much as digits as its factorization.

13629706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814855.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 13629706 is about 3691.8431711003. The cubic root of 13629706 is about 238.8703042169.

The spelling of 13629706 in words is "thirteen million, six hundred twenty-nine thousand, seven hundred six".