28347032 has 32 divisors (see below), whose sum is σ = 62389920. Its totient is φ = 11819520.

The previous prime is 28347029. The next prime is 28347043. The reversal of 28347032 is 23074382.

It is a junction number, because it is equal to n+sod(n) for n = 28346986 and 28347004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4769 + ... + 8912.

It is an arithmetic number, because the mean of its divisors is an integer number (1949685).

Almost surely, 2^28347032 is an apocalyptic number.

It is an amenable number.

28347032 is an abundant number, since it is smaller than the sum of its proper divisors (34042888).

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

28347032 is a wasteful number, since it uses less digits than its factorization.

28347032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13731 (or 13727 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 28347032 is about 5324.1930844026. The cubic root of 28347032 is about 304.9082658816.

The spelling of 28347032 in words is "twenty-eight million, three hundred forty-seven thousand, thirty-two".