28793700 has 216 divisors, whose sum is σ = 102368448. Its totient is φ = 6716160.

The previous prime is 28793651. The next prime is 28793729. The reversal of 28793700 is 739782.

28793700 is a `hidden beast` number, since 287 + 9 + 370 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 269047 + ... + 269153.

It is an arithmetic number, because the mean of its divisors is an integer number (473928).

Almost surely, 2^28793700 is an apocalyptic number.

28793700 is a gapful number since it is divisible by the number (20) 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 28793700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51184224).

28793700 is an abundant number, since it is smaller than the sum of its proper divisors (73574748).

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

28793700 is a wasteful number, since it uses less digits than its factorization.

28793700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 28793700 is about 5365.9761460521. The cubic root of 28793700 is about 306.5014206357.

The spelling of 28793700 in words is "twenty-eight million, seven hundred ninety-three thousand, seven hundred".