28587006 has 56 divisors (see below), whose sum is σ = 73502064. Its totient is φ = 8164800.

The previous prime is 28586983. The next prime is 28587007. The reversal of 28587006 is 60078582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28587007) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 8806 + ... + 11606.

Almost surely, 2^28587006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28587006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36751032).

28587006 is an abundant number, since it is smaller than the sum of its proper divisors (44915058).

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

28587006 is an equidigital number, since it uses as much as digits as its factorization.

28587006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828 (or 2813 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 28587006 is about 5346.6817747085. The cubic root of 28587006 is about 305.7662574840.

The spelling of 28587006 in words is "twenty-eight million, five hundred eighty-seven thousand, six".