28306798 has 8 divisors (see below), whose sum is σ = 45726408. Its totient is φ = 13064664.

The previous prime is 28306793. The next prime is 28306799. The reversal of 28306798 is 89760382.

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 (28306793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 544336 + ... + 544387.

It is an arithmetic number, because the mean of its divisors is an integer number (5715801).

Almost surely, 2^28306798 is an apocalyptic number.

28306798 is a deficient number, since it is larger than the sum of its proper divisors (17419610).

28306798 is a wasteful number, since it uses less digits than its factorization.

28306798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088738.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 28306798 is about 5320.4133298081. The cubic root of 28306798 is about 304.7639416864.

The spelling of 28306798 in words is "twenty-eight million, three hundred six thousand, seven hundred ninety-eight".