28785960 has 96 divisors (see below), whose sum is σ = 106928640. Its totient is φ = 6579072.

The previous prime is 28785929. The next prime is 28785979. The reversal of 28785960 is 6958782.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3192 + ... + 8231.

It is an arithmetic number, because the mean of its divisors is an integer number (1113840).

Almost surely, 2^28785960 is an apocalyptic number.

28785960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28785960 is an abundant number, since it is smaller than the sum of its proper divisors (78142680).

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

28785960 is a wasteful number, since it uses less digits than its factorization.

28785960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11447 (or 11440 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28785960 is about 5365.2548867691. The cubic root of 28785960 is about 306.4739547480.

The spelling of 28785960 in words is "twenty-eight million, seven hundred eighty-five thousand, nine hundred sixty".