28955928 has 16 divisors (see below), whose sum is σ = 72389880. Its totient is φ = 9651968.

The previous prime is 28955921. The next prime is 28955929. The reversal of 28955928 is 82955982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28955921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603225 + ... + 603272.

Almost surely, 2^28955928 is an apocalyptic number.

It is an amenable number.

28955928 is an abundant number, since it is smaller than the sum of its proper divisors (43433952).

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

28955928 is a wasteful number, since it uses less digits than its factorization.

28955928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206506 (or 1206502 counting only the distinct ones).

The product of its digits is 518400, while the sum is 48.

The square root of 28955928 is about 5381.0712688088. The cubic root of 28955928 is about 307.0759678595.

The spelling of 28955928 in words is "twenty-eight million, nine hundred fifty-five thousand, nine hundred twenty-eight".