13896660 has 24 divisors (see below), whose sum is σ = 38910816. Its totient is φ = 3705760.

The previous prime is 13896643. The next prime is 13896677. The reversal of 13896660 is 6669831.

Added to its reverse (6669831) it gives a triangular number (20566491 = T₆₄₁₃).

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13896643) and next prime (13896677).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 115746 + ... + 115865.

It is an arithmetic number, because the mean of its divisors is an integer number (1621284).

Almost surely, 2^13896660 is an apocalyptic number.

13896660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13896660 is an abundant number, since it is smaller than the sum of its proper divisors (25014156).

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

13896660 is a wasteful number, since it uses less digits than its factorization.

13896660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231623 (or 231621 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 13896660 is about 3727.8224206633. The cubic root of 13896660 is about 240.4197515524.

Adding to 13896660 its reverse (6669831), we get a triangular number (20566491 = T₆₄₁₃).

The spelling of 13896660 in words is "thirteen million, eight hundred ninety-six thousand, six hundred sixty".