28826081 has 2 divisors, whose sum is σ = 28826082. Its totient is φ = 28826080.

The previous prime is 28826069. The next prime is 28826089. The reversal of 28826081 is 18062882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 8755681 = 4480^2 + 2959^2 .

It is a cyclic number.

It is not a de Polignac number, because 28826081 - 2¹⁸ = 28563937 is a prime.

It is a super-3 number, since 3×28826081³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (28826089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14413040 + 14413041.

It is an arithmetic number, because the mean of its divisors is an integer number (14413041).

Almost surely, 2^28826081 is an apocalyptic number.

It is an amenable number.

28826081 is a deficient number, since it is larger than the sum of its proper divisors (1).

28826081 is an equidigital number, since it uses as much as digits as its factorization.

28826081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 28826081 is about 5368.9925498179. The cubic root of 28826081 is about 306.6162733568.

The spelling of 28826081 in words is "twenty-eight million, eight hundred twenty-six thousand, eighty-one".