28198059 has 8 divisors (see below), whose sum is σ = 37719552. Its totient is φ = 18737640.

The previous prime is 28198057. The next prime is 28198061. The reversal of 28198059 is 95089182.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28198057) and next prime (28198061).

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

It is not a de Polignac number, because 28198059 - 2¹ = 28198057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28198059.

It is not an unprimeable number, because it can be changed into a prime (28198057) 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, 14179 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (4714944).

Almost surely, 2^28198059 is an apocalyptic number.

28198059 is a deficient number, since it is larger than the sum of its proper divisors (9521493).

28198059 is a wasteful number, since it uses less digits than its factorization.

28198059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30537.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 28198059 is about 5310.1844600729. The cubic root of 28198059 is about 304.3731963036.

It can be divided in two parts, 2819 and 8059, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 28198059 in words is "twenty-eight million, one hundred ninety-eight thousand, fifty-nine".