13691748 has 24 divisors (see below), whose sum is σ = 36511552. Its totient is φ = 3911904.

The previous prime is 13691747. The next prime is 13691767. The reversal of 13691748 is 84719631.

13691748 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13691747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81415 + ... + 81582.

Almost surely, 2^13691748 is an apocalyptic number.

It is an amenable number.

13691748 is an abundant number, since it is smaller than the sum of its proper divisors (22819804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13691748 is a wasteful number, since it uses less digits than its factorization.

13691748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163011 (or 163009 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 13691748 is about 3700.2362086764. The cubic root of 13691748 is about 239.2321990711.

The spelling of 13691748 in words is "thirteen million, six hundred ninety-one thousand, seven hundred forty-eight".