28279098 has 32 divisors (see below), whose sum is σ = 65577600. Its totient is φ = 9016128.

The previous prime is 28279093. The next prime is 28279117. The reversal of 28279098 is 89097282.

It is not an unprimeable number, because it can be changed into a prime (28279093) 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 15 ways as a sum of consecutive naturals, for example, 10143 + ... + 12626.

It is an arithmetic number, because the mean of its divisors is an integer number (2049300).

Almost surely, 2^28279098 is an apocalyptic number.

28279098 is an abundant number, since it is smaller than the sum of its proper divisors (37298502).

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

28279098 is a wasteful number, since it uses less digits than its factorization.

28279098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22803 (or 22797 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 28279098 is about 5317.8095114436. The cubic root of 28279098 is about 304.6644989501.

The spelling of 28279098 in words is "twenty-eight million, two hundred seventy-nine thousand, ninety-eight".