28064592 has 60 divisors (see below), whose sum is σ = 79568320. Its totient is φ = 9232704.

The previous prime is 28064581. The next prime is 28064599. The reversal of 28064592 is 29546082.

It is a happy number.

28064592 is a `hidden beast` number, since 2 + 8 + 0 + 64 + 592 = 666.

It is a super-3 number, since 3×28064592³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28064599) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10143 + ... + 12609.

Almost surely, 2^28064592 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28064592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39784160).

28064592 is an abundant number, since it is smaller than the sum of its proper divisors (51503728).

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

28064592 is a wasteful number, since it uses less digits than its factorization.

28064592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28064592 is about 5297.6024765926. The cubic root of 28064592 is about 303.8922170995.

The spelling of 28064592 in words is "twenty-eight million, sixty-four thousand, five hundred ninety-two".