13791634 has 4 divisors (see below), whose sum is σ = 20687454. Its totient is φ = 6895816.

The previous prime is 13791623. The next prime is 13791637. The reversal of 13791634 is 43619731.

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

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 4397409 = 3065^2 + 2097^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13791634.

It is not an unprimeable number, because it can be changed into a prime (13791637) 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, 3447907 + ... + 3447910.

Almost surely, 2^13791634 is an apocalyptic number.

13791634 is a deficient number, since it is larger than the sum of its proper divisors (6895820).

13791634 is an equidigital number, since it uses as much as digits as its factorization.

13791634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895819.

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

The square root of 13791634 is about 3713.7089277433. The cubic root of 13791634 is about 239.8125503917.

The spelling of 13791634 in words is "thirteen million, seven hundred ninety-one thousand, six hundred thirty-four".