28658196 has 36 divisors (see below), whose sum is σ = 82791072. Its totient is φ = 8187984.

The previous prime is 28658191. The next prime is 28658219. The reversal of 28658196 is 69185682.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28658191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56610 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (2299752).

Almost surely, 2^28658196 is an apocalyptic number.

It is an amenable number.

28658196 is an abundant number, since it is smaller than the sum of its proper divisors (54132876).

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

28658196 is a wasteful number, since it uses less digits than its factorization.

28658196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113740 (or 113735 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 28658196 is about 5353.3350352841. The cubic root of 28658196 is about 306.0198628655.

The spelling of 28658196 in words is "twenty-eight million, six hundred fifty-eight thousand, one hundred ninety-six".