13687460 has 12 divisors (see below), whose sum is σ = 28743708. Its totient is φ = 5474976.

The previous prime is 13687439. The next prime is 13687463. The reversal of 13687460 is 6478631.

It can be written as a sum of positive squares in 2 ways, for example, as 8202496 + 5484964 = 2864^2 + 2342^2 .

It is a super-2 number, since 2×13687460² = 374693122503200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13687460.

It is not an unprimeable number, because it can be changed into a prime (13687463) 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, 342167 + ... + 342206.

It is an arithmetic number, because the mean of its divisors is an integer number (2395309).

Almost surely, 2^13687460 is an apocalyptic number.

13687460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13687460 is an abundant number, since it is smaller than the sum of its proper divisors (15056248).

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

13687460 is a wasteful number, since it uses less digits than its factorization.

13687460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684382 (or 684380 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 13687460 is about 3699.6567408342. The cubic root of 13687460 is about 239.2072221098.

The spelling of 13687460 in words is "thirteen million, six hundred eighty-seven thousand, four hundred sixty".