13659828 has 72 divisors (see below), whose sum is σ = 39951072. Its totient is φ = 3600576.

The previous prime is 13659827. The next prime is 13659839. The reversal of 13659828 is 82895631.

13659828 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 13659828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13659827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6751 + ... + 8537.

It is an arithmetic number, because the mean of its divisors is an integer number (554876).

Almost surely, 2^13659828 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 13659828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19975536).

13659828 is an abundant number, since it is smaller than the sum of its proper divisors (26291244).

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

13659828 is a wasteful number, since it uses less digits than its factorization.

13659828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1812 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 13659828 is about 3695.9204536894. The cubic root of 13659828 is about 239.0461445772.

The spelling of 13659828 in words is "thirteen million, six hundred fifty-nine thousand, eight hundred twenty-eight".