28058502 has 8 divisors (see below), whose sum is σ = 56117016. Its totient is φ = 9352832.

The previous prime is 28058501. The next prime is 28058519. The reversal of 28058502 is 20585082.

It is a sphenic number, since it is the product of 3 distinct primes.

28058502 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28058502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28058501) 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 3 ways as a sum of consecutive naturals, for example, 2338203 + ... + 2338214.

It is an arithmetic number, because the mean of its divisors is an integer number (7014627).

Almost surely, 2^28058502 is an apocalyptic number.

28058502 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28058502 is a wasteful number, since it uses less digits than its factorization.

28058502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676422.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 28058502 is about 5297.0276570922. The cubic root of 28058502 is about 303.8702340317.

The spelling of 28058502 in words is "twenty-eight million, fifty-eight thousand, five hundred two".