28958590 has 8 divisors (see below), whose sum is σ = 52125480. Its totient is φ = 11583432.

The previous prime is 28958563. The next prime is 28958647. The reversal of 28958590 is 9585982.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28958590.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447920 + ... + 1447939.

It is an arithmetic number, because the mean of its divisors is an integer number (6515685).

Almost surely, 2^28958590 is an apocalyptic number.

28958590 is a deficient number, since it is larger than the sum of its proper divisors (23166890).

28958590 is a wasteful number, since it uses less digits than its factorization.

28958590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895866.

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 28958590 is about 5381.3186116416. The cubic root of 28958590 is about 307.0853776906.

The spelling of 28958590 in words is "twenty-eight million, nine hundred fifty-eight thousand, five hundred ninety".