28765792 has 48 divisors (see below), whose sum is σ = 62705664. Its totient is φ = 12880000.

The previous prime is 28765771. The next prime is 28765813. The reversal of 28765792 is 29756782.

It is an interprime number because it is at equal distance from previous prime (28765771) and next prime (28765813).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24417 + ... + 25567.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^28765792 is an apocalyptic number.

28765792 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 28765792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31352832).

28765792 is an abundant number, since it is smaller than the sum of its proper divisors (33939872).

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

28765792 is a wasteful number, since it uses less digits than its factorization.

28765792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1235 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 28765792 is about 5363.3750568089. The cubic root of 28765792 is about 306.4023641672.

It can be divided in two parts, 2876 and 5792, that added together give a palindrome (8668).

The spelling of 28765792 in words is "twenty-eight million, seven hundred sixty-five thousand, seven hundred ninety-two".