13689270 has 64 divisors (see below), whose sum is σ = 41725440. Its totient is φ = 3128544.

The previous prime is 13689257. The next prime is 13689281. The reversal of 13689270 is 7298631.

13689270 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 super-2 number, since 2×13689270² = 374792226265800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1732 + ... + 5511.

It is an arithmetic number, because the mean of its divisors is an integer number (651960).

Almost surely, 2^13689270 is an apocalyptic number.

13689270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13689270 is an abundant number, since it is smaller than the sum of its proper divisors (28036170).

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

13689270 is a wasteful number, since it uses less digits than its factorization.

13689270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7266 (or 7260 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13689270 is about 3699.9013500362. The cubic root of 13689270 is about 239.2177657263.

The spelling of 13689270 in words is "thirteen million, six hundred eighty-nine thousand, two hundred seventy".