28676161 has 8 divisors (see below), whose sum is σ = 30861864. Its totient is φ = 26545920.

The previous prime is 28676159. The next prime is 28676173. The reversal of 28676161 is 16167682.

It can be written as a sum of positive squares in 4 ways, for example, as 384400 + 28291761 = 620^2 + 5319^2 .

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 28676161 - 2¹ = 28676159 is a prime.

It is a Duffinian number.

28676161 is a modest number, since divided by 6161 gives 2867 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 28676161.

It is not an unprimeable number, because it can be changed into a prime (28676761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12790 + ... + 14863.

It is an arithmetic number, because the mean of its divisors is an integer number (3857733).

Almost surely, 2^28676161 is an apocalyptic number.

It is an amenable number.

28676161 is a deficient number, since it is larger than the sum of its proper divisors (2185703).

28676161 is a wasteful number, since it uses less digits than its factorization.

28676161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27731.

The product of its digits is 24192, while the sum is 37.

The square root of 28676161 is about 5355.0126983976. The cubic root of 28676161 is about 306.0837945294.

The spelling of 28676161 in words is "twenty-eight million, six hundred seventy-six thousand, one hundred sixty-one".