28093652 has 12 divisors (see below), whose sum is σ = 49494900. Its totient is φ = 13952256.

The previous prime is 28093633. The next prime is 28093661. The reversal of 28093652 is 25639082.

It can be written as a sum of positive squares in 2 ways, for example, as 1012036 + 27081616 = 1006^2 + 5204^2 .

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 22973 + ... + 24164.

It is an arithmetic number, because the mean of its divisors is an integer number (4124575).

Almost surely, 2^28093652 is an apocalyptic number.

It is an amenable number.

28093652 is a deficient number, since it is larger than the sum of its proper divisors (21401248).

28093652 is a wasteful number, since it uses less digits than its factorization.

28093652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47290 (or 47288 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 28093652 is about 5300.3445171045. The cubic root of 28093652 is about 303.9970711860.

The spelling of 28093652 in words is "twenty-eight million, ninety-three thousand, six hundred fifty-two".