28793958 has 8 divisors (see below), whose sum is σ = 57587928. Its totient is φ = 9597984.

The previous prime is 28793951. The next prime is 28793981. The reversal of 28793958 is 85939782.

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

28793958 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28793958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28793951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399491 + ... + 2399502.

It is an arithmetic number, because the mean of its divisors is an integer number (7198491).

Almost surely, 2^28793958 is an apocalyptic number.

28793958 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.

28793958 is a wasteful number, since it uses less digits than its factorization.

28793958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798998.

The product of its digits is 1088640, while the sum is 51.

The square root of 28793958 is about 5366.0001863586. Note that the first 3 decimals coincide. The cubic root of 28793958 is about 306.5023360805.

The spelling of 28793958 in words is "twenty-eight million, seven hundred ninety-three thousand, nine hundred fifty-eight".