28886968 has 32 divisors (see below), whose sum is σ = 59679360. Its totient is φ = 12998880.

The previous prime is 28886953. The next prime is 28886969. The reversal of 28886968 is 86968882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28886969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7471 + ... + 10657.

It is an arithmetic number, because the mean of its divisors is an integer number (1864980).

Almost surely, 2^28886968 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 28886968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29839680).

28886968 is an abundant number, since it is smaller than the sum of its proper divisors (30792392).

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

28886968 is a wasteful number, since it uses less digits than its factorization.

28886968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307 (or 3303 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 55.

The square root of 28886968 is about 5374.6598031875. The cubic root of 28886968 is about 306.8320017931.

The spelling of 28886968 in words is "twenty-eight million, eight hundred eighty-six thousand, nine hundred sixty-eight".