28001862 has 48 divisors (see below), whose sum is σ = 71914752. Its totient is φ = 7999560.

The previous prime is 28001837. The next prime is 28001881. The reversal of 28001862 is 26810082.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 714 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (1498224).

Almost surely, 2^28001862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28001862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35957376).

28001862 is an abundant number, since it is smaller than the sum of its proper divisors (43912890).

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

28001862 is an equidigital number, since it uses as much as digits as its factorization.

28001862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255 (or 8243 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 28001862 is about 5291.6785616664. The cubic root of 28001862 is about 303.6656281439.

The spelling of 28001862 in words is "twenty-eight million, one thousand, eight hundred sixty-two".