13671860 has 24 divisors (see below), whose sum is σ = 29412936. Its totient is φ = 5335040.

The previous prime is 13671857. The next prime is 13671863. The reversal of 13671860 is 6817631.

13671860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13671857) and next prime (13671863).

It can be written as a sum of positive squares in 4 ways, for example, as 1196836 + 12475024 = 1094^2 + 3532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13671863) 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, 7517 + ... + 9156.

It is an arithmetic number, because the mean of its divisors is an integer number (1225539).

Almost surely, 2^13671860 is an apocalyptic number.

13671860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13671860 is an abundant number, since it is smaller than the sum of its proper divisors (15741076).

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

13671860 is a wasteful number, since it uses less digits than its factorization.

13671860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16723 (or 16721 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 13671860 is about 3697.5478360665. The cubic root of 13671860 is about 239.1163103982.

The spelling of 13671860 in words is "thirteen million, six hundred seventy-one thousand, eight hundred sixty".