28670536 has 32 divisors (see below), whose sum is σ = 55872000. Its totient is φ = 13777920.

The previous prime is 28670513. The next prime is 28670539. The reversal of 28670536 is 63507682.

It is a junction number, because it is equal to n+sod(n) for n = 28670495 and 28670504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28670539) 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, 47565 + ... + 48163.

It is an arithmetic number, because the mean of its divisors is an integer number (1746000).

Almost surely, 2^28670536 is an apocalyptic number.

It is an amenable number.

28670536 is a deficient number, since it is larger than the sum of its proper divisors (27201464).

28670536 is a wasteful number, since it uses less digits than its factorization.

28670536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 28670536 is about 5354.4874638008. The cubic root of 28670536 is about 306.0637798334.

The spelling of 28670536 in words is "twenty-eight million, six hundred seventy thousand, five hundred thirty-six".