28905598 has 8 divisors (see below), whose sum is σ = 43845840. Its totient is φ = 14290320.

The previous prime is 28905587. The next prime is 28905599. The reversal of 28905598 is 89550982.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28905599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81018 + ... + 81373.

It is an arithmetic number, because the mean of its divisors is an integer number (5480730).

Almost surely, 2^28905598 is an apocalyptic number.

28905598 is a deficient number, since it is larger than the sum of its proper divisors (14940242).

28905598 is a wasteful number, since it uses less digits than its factorization.

28905598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162482.

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

The square root of 28905598 is about 5376.3926567914. The cubic root of 28905598 is about 306.8979490831.

The spelling of 28905598 in words is "twenty-eight million, nine hundred five thousand, five hundred ninety-eight".