28632508 has 12 divisors (see below), whose sum is σ = 51052680. Its totient is φ = 14046032.

The previous prime is 28632503. The next prime is 28632509. The reversal of 28632508 is 80523682.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28632503) 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, 67318 + ... + 67741.

It is an arithmetic number, because the mean of its divisors is an integer number (4254390).

Almost surely, 2^28632508 is an apocalyptic number.

It is an amenable number.

28632508 is a deficient number, since it is larger than the sum of its proper divisors (22420172).

28632508 is a wasteful number, since it uses less digits than its factorization.

28632508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135116 (or 135114 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 28632508 is about 5350.9352453566. The cubic root of 28632508 is about 305.9284010933.

The spelling of 28632508 in words is "twenty-eight million, six hundred thirty-two thousand, five hundred eight".