28585716 has 24 divisors (see below), whose sum is σ = 66786720. Its totient is φ = 9516192.

The previous prime is 28585703. The next prime is 28585717. The reversal of 28585716 is 61758582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28585717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16315 + ... + 17981.

It is an arithmetic number, because the mean of its divisors is an integer number (2782780).

Almost surely, 2^28585716 is an apocalyptic number.

It is an amenable number.

28585716 is an abundant number, since it is smaller than the sum of its proper divisors (38201004).

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

28585716 is a wasteful number, since it uses less digits than its factorization.

28585716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103 (or 3101 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 28585716 is about 5346.5611377782. The cubic root of 28585716 is about 305.7616581402.

The spelling of 28585716 in words is "twenty-eight million, five hundred eighty-five thousand, seven hundred sixteen".