28584136 has 32 divisors (see below), whose sum is σ = 61439040. Its totient is φ = 12212928.

The previous prime is 28584133. The next prime is 28584137. The reversal of 28584136 is 63148582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28584095 and 28584104.

It is not an unprimeable number, because it can be changed into a prime (28584133) 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, 25606 + ... + 26698.

It is an arithmetic number, because the mean of its divisors is an integer number (1919970).

Almost surely, 2^28584136 is an apocalyptic number.

It is an amenable number.

28584136 is an abundant number, since it is smaller than the sum of its proper divisors (32854904).

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

28584136 is a wasteful number, since it uses less digits than its factorization.

28584136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1569 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 28584136 is about 5346.4133772091. The cubic root of 28584136 is about 305.7560246469.

The spelling of 28584136 in words is "twenty-eight million, five hundred eighty-four thousand, one hundred thirty-six".