28885692 has 48 divisors (see below), whose sum is σ = 74793600. Its totient is φ = 8602560.

The previous prime is 28885691. The next prime is 28885693. The reversal of 28885692 is 29658882.

It is an interprime number because it is at equal distance from previous prime (28885691) and next prime (28885693).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28885691) 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 15 ways as a sum of consecutive naturals, for example, 5934 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (1558200).

Almost surely, 2^28885692 is an apocalyptic number.

28885692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28885692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37396800).

28885692 is an abundant number, since it is smaller than the sum of its proper divisors (45907908).

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

28885692 is a wasteful number, since it uses less digits than its factorization.

28885692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786 (or 3784 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 28885692 is about 5374.5410966891. The cubic root of 28885692 is about 306.8274839150.

The spelling of 28885692 in words is "twenty-eight million, eight hundred eighty-five thousand, six hundred ninety-two".