28676131 has 8 divisors (see below), whose sum is σ = 31680000. Its totient is φ = 25738440.

The previous prime is 28676129. The next prime is 28676143. The reversal of 28676131 is 13167682.

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

It is a cyclic number.

It is not a de Polignac number, because 28676131 - 2¹ = 28676129 is a prime.

It is a super-2 number, since 2×28676131² = 1644640978258322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28676231) 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, 15631 + ... + 17368.

It is an arithmetic number, because the mean of its divisors is an integer number (3960000).

Almost surely, 2^28676131 is an apocalyptic number.

28676131 is a deficient number, since it is larger than the sum of its proper divisors (3003869).

28676131 is a wasteful number, since it uses less digits than its factorization.

28676131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33089.

The product of its digits is 12096, while the sum is 34.

The square root of 28676131 is about 5355.0098972831. The cubic root of 28676131 is about 306.0836877913.

It can be divided in two parts, 2867 and 6131, that added together give a palindrome (8998).

The spelling of 28676131 in words is "twenty-eight million, six hundred seventy-six thousand, one hundred thirty-one".