28820848 has 40 divisors (see below), whose sum is σ = 67576032. Its totient is φ = 11624448.

The previous prime is 28820843. The next prime is 28820849. The reversal of 28820848 is 84802882.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28820848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28820843) 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, 5665 + ... + 9472.

Almost surely, 2^28820848 is an apocalyptic number.

28820848 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28820848 is an abundant number, since it is smaller than the sum of its proper divisors (38755184).

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

28820848 is a wasteful number, since it uses less digits than its factorization.

28820848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15169 (or 15163 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 28820848 is about 5368.5051923231. The cubic root of 28820848 is about 306.5977181687.

The spelling of 28820848 in words is "twenty-eight million, eight hundred twenty thousand, eight hundred forty-eight".