11639028 has 12 divisors (see below), whose sum is σ = 27157760. Its totient is φ = 3879672.

The previous prime is 11639021. The next prime is 11639029. The reversal of 11639028 is 82093611.

11639028 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 tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 11638986 and 11639004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484948 + ... + 484971.

Almost surely, 2^11639028 is an apocalyptic number.

It is an amenable number.

11639028 is an abundant number, since it is smaller than the sum of its proper divisors (15518732).

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

11639028 is a wasteful number, since it uses less digits than its factorization.

11639028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969926 (or 969924 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 11639028 is about 3411.6019697497. The cubic root of 11639028 is about 226.6238279288.

The spelling of 11639028 in words is "eleven million, six hundred thirty-nine thousand, twenty-eight".