28648298 has 16 divisors (see below), whose sum is σ = 52000704. Its totient is φ = 11555520.

The previous prime is 28648297. The next prime is 28648303. The reversal of 28648298 is 89284682.

It is not an unprimeable number, because it can be changed into a prime (28648297) 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 7 ways as a sum of consecutive naturals, for example, 59948 + ... + 60423.

It is an arithmetic number, because the mean of its divisors is an integer number (3250044).

Almost surely, 2^28648298 is an apocalyptic number.

28648298 is a deficient number, since it is larger than the sum of its proper divisors (23352406).

28648298 is a wasteful number, since it uses less digits than its factorization.

28648298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120397.

The product of its digits is 442368, while the sum is 47.

The square root of 28648298 is about 5352.4104850058. The cubic root of 28648298 is about 305.9846276470.

It can be divided in two parts, 286 and 48298, that added together give a palindrome (48584).

The spelling of 28648298 in words is "twenty-eight million, six hundred forty-eight thousand, two hundred ninety-eight".