13487870 has 48 divisors (see below), whose sum is σ = 27234144. Its totient is φ = 4804800.

The previous prime is 13487863. The next prime is 13487879. The reversal of 13487870 is 7878431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13487879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85832 + ... + 85988.

It is an arithmetic number, because the mean of its divisors is an integer number (567378).

Almost surely, 2^13487870 is an apocalyptic number.

13487870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13487870 is an abundant number, since it is smaller than the sum of its proper divisors (13746274).

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

13487870 is a wasteful number, since it uses less digits than its factorization.

13487870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 13487870 is about 3672.5835592945. The cubic root of 13487870 is about 238.0388209631.

The spelling of 13487870 in words is "thirteen million, four hundred eighty-seven thousand, eight hundred seventy".