28598330 has 16 divisors (see below), whose sum is σ = 51951240. Its totient is φ = 11333952.

The previous prime is 28598327. The next prime is 28598333. The reversal of 28598330 is 3389582.

It is an interprime number because it is at equal distance from previous prime (28598327) and next prime (28598333).

It can be written as a sum of positive squares in 4 ways, for example, as 20367169 + 8231161 = 4513^2 + 2869^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28598333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12029 + ... + 14208.

Almost surely, 2^28598330 is an apocalyptic number.

28598330 is a deficient number, since it is larger than the sum of its proper divisors (23352910).

28598330 is a wasteful number, since it uses less digits than its factorization.

28598330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26353.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 28598330 is about 5347.7406444217. The cubic root of 28598330 is about 305.8066259415.

It can be divided in two parts, 28598 and 330, that multiplied together give a triangular number (9437340 = T₄₃₄₄).

The spelling of 28598330 in words is "twenty-eight million, five hundred ninety-eight thousand, three hundred thirty".