28475632 has 20 divisors (see below), whose sum is σ = 56455960. Its totient is φ = 13906368.

The previous prime is 28475591. The next prime is 28475669. The reversal of 28475632 is 23657482.

It is a junction number, because it is equal to n+sod(n) for n = 28475591 and 28475600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20007 + ... + 21382.

It is an arithmetic number, because the mean of its divisors is an integer number (2822798).

Almost surely, 2^28475632 is an apocalyptic number.

It is an amenable number.

28475632 is a deficient number, since it is larger than the sum of its proper divisors (27980328).

28475632 is a wasteful number, since it uses less digits than its factorization.

28475632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41440 (or 41434 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 28475632 is about 5336.2563656556. The cubic root of 28475632 is about 305.3686557196.

The spelling of 28475632 in words is "twenty-eight million, four hundred seventy-five thousand, six hundred thirty-two".