13771634 has 8 divisors (see below), whose sum is σ = 20673900. Its totient is φ = 6880336.

The previous prime is 13771633. The next prime is 13771643. The reversal of 13771634 is 43617731.

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 1500625 = 3503^2 + 1225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13771634.

It is not an unprimeable number, because it can be changed into a prime (13771631) 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 in 3 ways as a sum of consecutive naturals, for example, 2132 + ... + 5664.

Almost surely, 2^13771634 is an apocalyptic number.

13771634 is a deficient number, since it is larger than the sum of its proper divisors (6902266).

13771634 is a wasteful number, since it uses less digits than its factorization.

13771634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484.

The product of its digits is 10584, while the sum is 32.

The square root of 13771634 is about 3711.0152249755. The cubic root of 13771634 is about 239.6965725626.

The spelling of 13771634 in words is "thirteen million, seven hundred seventy-one thousand, six hundred thirty-four".