28928604 has 12 divisors (see below), whose sum is σ = 67500104. Its totient is φ = 9642864.

The previous prime is 28928597. The next prime is 28928609. The reversal of 28928604 is 40682982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28928609) 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, 1205347 + ... + 1205370.

Almost surely, 2^28928604 is an apocalyptic number.

It is an amenable number.

28928604 is an abundant number, since it is smaller than the sum of its proper divisors (38571500).

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

28928604 is a wasteful number, since it uses less digits than its factorization.

28928604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410724 (or 2410722 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 28928604 is about 5378.5317699164. The cubic root of 28928604 is about 306.9793476401.

The spelling of 28928604 in words is "twenty-eight million, nine hundred twenty-eight thousand, six hundred four".