28134698 has 8 divisors (see below), whose sum is σ = 43657380. Its totient is φ = 13582240.

The previous prime is 28134697. The next prime is 28134709. The reversal of 28134698 is 89643182.

It can be written as a sum of positive squares in 2 ways, for example, as 27952369 + 182329 = 5287^2 + 427^2 .

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

It is a super-2 number, since 2×28134698² = 1583122463102408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28134697) 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 3 ways as a sum of consecutive naturals, for example, 242483 + ... + 242598.

Almost surely, 2^28134698 is an apocalyptic number.

28134698 is a deficient number, since it is larger than the sum of its proper divisors (15522682).

28134698 is a wasteful number, since it uses less digits than its factorization.

28134698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485112.

The product of its digits is 82944, while the sum is 41.

The square root of 28134698 is about 5304.2151163014. The cubic root of 28134698 is about 304.1450499514.

The spelling of 28134698 in words is "twenty-eight million, one hundred thirty-four thousand, six hundred ninety-eight".