28165304 has 8 divisors (see below), whose sum is σ = 52809960. Its totient is φ = 14082648.

The previous prime is 28165279. The next prime is 28165307. The reversal of 28165304 is 40356182.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28165307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760324 + ... + 1760339.

It is an arithmetic number, because the mean of its divisors is an integer number (6601245).

Almost surely, 2^28165304 is an apocalyptic number.

It is an amenable number.

28165304 is a deficient number, since it is larger than the sum of its proper divisors (24644656).

28165304 is a wasteful number, since it uses less digits than its factorization.

28165304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520669 (or 3520665 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 28165304 is about 5307.0993960920. The cubic root of 28165304 is about 304.2552968548.

The spelling of 28165304 in words is "twenty-eight million, one hundred sixty-five thousand, three hundred four".