28577652 has 24 divisors (see below), whose sum is σ = 67171776. Its totient is φ = 9455808.

The previous prime is 28577651. The next prime is 28577657. The reversal of 28577652 is 25677582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28577651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7048 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (2798824).

Almost surely, 2^28577652 is an apocalyptic number.

It is an amenable number.

28577652 is an abundant number, since it is smaller than the sum of its proper divisors (38594124).

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

28577652 is a wasteful number, since it uses less digits than its factorization.

28577652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17527 (or 17525 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 28577652 is about 5345.8069549882. The cubic root of 28577652 is about 305.7329037570.

The spelling of 28577652 in words is "twenty-eight million, five hundred seventy-seven thousand, six hundred fifty-two".