28655792 has 40 divisors (see below), whose sum is σ = 63210240. Its totient is φ = 12457280.

The previous prime is 28655791. The next prime is 28655827. The reversal of 28655792 is 29755682.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (28655791) 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, 509 + ... + 7587.

It is an arithmetic number, because the mean of its divisors is an integer number (1580256).

Almost surely, 2^28655792 is an apocalyptic number.

28655792 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 28655792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31605120).

28655792 is an abundant number, since it is smaller than the sum of its proper divisors (34554448).

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

28655792 is a wasteful number, since it uses less digits than its factorization.

28655792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121 (or 7115 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 28655792 is about 5353.1104976453. The cubic root of 28655792 is about 306.0113057751.

The spelling of 28655792 in words is "twenty-eight million, six hundred fifty-five thousand, seven hundred ninety-two".