28795998 has 64 divisors (see below), whose sum is σ = 72442368. Its totient is φ = 7413120.

The previous prime is 28795969. The next prime is 28795999. The reversal of 28795998 is 89959782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28795999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72336 + ... + 72732.

It is an arithmetic number, because the mean of its divisors is an integer number (1131912).

Almost surely, 2^28795998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28795998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36221184).

28795998 is an abundant number, since it is smaller than the sum of its proper divisors (43646370).

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

28795998 is a wasteful number, since it uses less digits than its factorization.

28795998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its digits is 3265920, while the sum is 57.

The square root of 28795998 is about 5366.1902687102. The cubic root of 28795998 is about 306.5095742889.

The spelling of 28795998 in words is "twenty-eight million, seven hundred ninety-five thousand, nine hundred ninety-eight".