28314632 has 8 divisors (see below), whose sum is σ = 53089950. Its totient is φ = 14157312.

The previous prime is 28314607. The next prime is 28314653. The reversal of 28314632 is 23641382.

It can be written as a sum of positive squares in only one way, i.e., 26481316 + 1833316 = 5146^2 + 1354^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 28314595 and 28314604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1769657 + ... + 1769672.

Almost surely, 2^28314632 is an apocalyptic number.

It is an amenable number.

28314632 is a deficient number, since it is larger than the sum of its proper divisors (24775318).

28314632 is a wasteful number, since it uses less digits than its factorization.

28314632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539335 (or 3539331 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 28314632 is about 5321.1494998731. The cubic root of 28314632 is about 304.7920539029.

The spelling of 28314632 in words is "twenty-eight million, three hundred fourteen thousand, six hundred thirty-two".