13503996 has 84 divisors (see below), whose sum is σ = 38744664. Its totient is φ = 4082400.

The previous prime is 13503991. The next prime is 13504033. The reversal of 13503996 is 69930531.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13503996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13503991) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 31866 + ... + 32286.

It is an arithmetic number, because the mean of its divisors is an integer number (461246).

Almost surely, 2^13503996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13503996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19372332).

13503996 is an abundant number, since it is smaller than the sum of its proper divisors (25240668).

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

13503996 is a wasteful number, since it uses less digits than its factorization.

13503996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 13503996 is about 3674.7783606634. The cubic root of 13503996 is about 238.1336490132.

The spelling of 13503996 in words is "thirteen million, five hundred three thousand, nine hundred ninety-six".