28472850 has 192 divisors, whose sum is σ = 94279680. Its totient is φ = 6177600.

The previous prime is 28472839. The next prime is 28472879. The reversal of 28472850 is 5827482.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 217285 + ... + 217415.

It is an arithmetic number, because the mean of its divisors is an integer number (491040).

Almost surely, 2^28472850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28472850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47139840).

28472850 is an abundant number, since it is smaller than the sum of its proper divisors (65806830).

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

28472850 is a wasteful number, since it uses less digits than its factorization.

28472850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28472850 is about 5335.9956896534. The cubic root of 28472850 is about 305.3587108041.

It can be divided in two parts, 28 and 472850, that added together give a triangular number (472878 = T₉₇₂).

The spelling of 28472850 in words is "twenty-eight million, four hundred seventy-two thousand, eight hundred fifty".