13711621 has 12 divisors (see below), whose sum is σ = 17400960. Its totient is φ = 10683960.

The previous prime is 13711619. The next prime is 13711661. The reversal of 13711621 is 12611731.

It is not a de Polignac number, because 13711621 - 2¹ = 13711619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13711592 and 13711601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13711661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12181 + ... + 13258.

It is an arithmetic number, because the mean of its divisors is an integer number (1450080).

Almost surely, 2^13711621 is an apocalyptic number.

13711621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13711621 is a deficient number, since it is larger than the sum of its proper divisors (3689339).

13711621 is a wasteful number, since it uses less digits than its factorization.

13711621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25464 (or 25457 counting only the distinct ones).

The product of its digits is 252, while the sum is 22.

The square root of 13711621 is about 3702.9206040638. The cubic root of 13711621 is about 239.3478882960.

It can be divided in two parts, 1371 and 1621, that added together give a palindrome (2992).

The spelling of 13711621 in words is "thirteen million, seven hundred eleven thousand, six hundred twenty-one".