28798149 has 8 divisors (see below), whose sum is σ = 38428992. Its totient is φ = 19183040.

The previous prime is 28798111. The next prime is 28798151. The reversal of 28798149 is 94189782.

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

It is a cyclic number.

It is not a de Polignac number, because 28798149 - 2¹⁵ = 28765381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28798098 and 28798107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28798199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (4803624).

Almost surely, 2^28798149 is an apocalyptic number.

It is an amenable number.

28798149 is a deficient number, since it is larger than the sum of its proper divisors (9630843).

28798149 is a wasteful number, since it uses less digits than its factorization.

28798149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7867.

The product of its digits is 290304, while the sum is 48.

The square root of 28798149 is about 5366.3906864857. The cubic root of 28798149 is about 306.5172059706.

The spelling of 28798149 in words is "twenty-eight million, seven hundred ninety-eight thousand, one hundred forty-nine".