28147036 has 24 divisors (see below), whose sum is σ = 52345440. Its totient is φ = 13197312.

The previous prime is 28147001. The next prime is 28147073. The reversal of 28147036 is 63074182.

It is a junction number, because it is equal to n+sod(n) for n = 28146989 and 28147007.

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, 23836 + ... + 24988.

It is an arithmetic number, because the mean of its divisors is an integer number (2181060).

Almost surely, 2^28147036 is an apocalyptic number.

It is an amenable number.

28147036 is a deficient number, since it is larger than the sum of its proper divisors (24198404).

28147036 is a wasteful number, since it uses less digits than its factorization.

28147036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28147036 is about 5305.3780261165. The cubic root of 28147036 is about 304.1895026912.

The spelling of 28147036 in words is "twenty-eight million, one hundred forty-seven thousand, thirty-six".