28999590 has 16 divisors (see below), whose sum is σ = 69599088. Its totient is φ = 7733216.

The previous prime is 28999577. The next prime is 28999609. The reversal of 28999590 is 9599982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483297 + ... + 483356.

It is an arithmetic number, because the mean of its divisors is an integer number (4349943).

Almost surely, 2^28999590 is an apocalyptic number.

28999590 is an abundant number, since it is smaller than the sum of its proper divisors (40599498).

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

28999590 is a wasteful number, since it uses less digits than its factorization.

28999590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966663.

The product of its (nonzero) digits is 524880, while the sum is 51.

The square root of 28999590 is about 5385.1267394556. The cubic root of 28999590 is about 307.2302346883.

The spelling of 28999590 in words is "twenty-eight million, nine hundred ninety-nine thousand, five hundred ninety".