13691960 has 16 divisors (see below), whose sum is σ = 30807000. Its totient is φ = 5476768.

The previous prime is 13691947. The next prime is 13691963. The reversal of 13691960 is 6919631.

It is a self number, because there is not a number n which added to its sum of digits gives 13691960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13691963) 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, 171110 + ... + 171189.

Almost surely, 2^13691960 is an apocalyptic number.

13691960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13691960 is an abundant number, since it is smaller than the sum of its proper divisors (17115040).

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

13691960 is a wasteful number, since it uses less digits than its factorization.

13691960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342310 (or 342306 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 13691960 is about 3700.2648553854. The cubic root of 13691960 is about 239.2334338042.

The spelling of 13691960 in words is "thirteen million, six hundred ninety-one thousand, nine hundred sixty".