28903068 has 60 divisors (see below), whose sum is σ = 77632632. Its totient is φ = 9370080.

The previous prime is 28903037. The next prime is 28903079. The reversal of 28903068 is 86030982.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10783 + ... + 13193.

Almost surely, 2^28903068 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 28903068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38816316).

28903068 is an abundant number, since it is smaller than the sum of its proper divisors (48729564).

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

28903068 is a wasteful number, since it uses less digits than its factorization.

28903068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464 (or 2453 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 28903068 is about 5376.1573637683. The cubic root of 28903068 is about 306.8889949414. Note that the first 3 decimals are identical.

The spelling of 28903068 in words is "twenty-eight million, nine hundred three thousand, sixty-eight".