28607072 has 24 divisors (see below), whose sum is σ = 60653376. Its totient is φ = 13203072.

The previous prime is 28607071. The next prime is 28607077. The reversal of 28607072 is 27070682.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28607071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33968 + ... + 34799.

It is an arithmetic number, because the mean of its divisors is an integer number (2527224).

Almost surely, 2^28607072 is an apocalyptic number.

It is an amenable number.

28607072 is an abundant number, since it is smaller than the sum of its proper divisors (32046304).

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

28607072 is a wasteful number, since it uses less digits than its factorization.

28607072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68790 (or 68782 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28607072 is about 5348.5579364909. The cubic root of 28607072 is about 305.8377826462.

The spelling of 28607072 in words is "twenty-eight million, six hundred seven thousand, seventy-two".