28671598 has 8 divisors (see below), whose sum is σ = 43922592. Its totient is φ = 14030736.

The previous prime is 28671557. The next prime is 28671611. The reversal of 28671598 is 89517682.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152415 + ... + 152602.

It is an arithmetic number, because the mean of its divisors is an integer number (5490324).

Almost surely, 2^28671598 is an apocalyptic number.

28671598 is a deficient number, since it is larger than the sum of its proper divisors (15250994).

28671598 is a wasteful number, since it uses less digits than its factorization.

28671598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305066.

The product of its digits is 241920, while the sum is 46.

The square root of 28671598 is about 5354.5866320380. The cubic root of 28671598 is about 306.0675588084.

It can be divided in two parts, 2867 and 1598, that added together give a triangular number (4465 = T₉₄).

The spelling of 28671598 in words is "twenty-eight million, six hundred seventy-one thousand, five hundred ninety-eight".