28868341 has 2 divisors, whose sum is σ = 28868342. Its totient is φ = 28868340.

The previous prime is 28868327. The next prime is 28868377. The reversal of 28868341 is 14386882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26481316 + 2387025 = 5146^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 28868341 - 2¹⁹ = 28344053 is a prime.

It is a super-2 number, since 2×28868341² = 1666762224184562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28868294 and 28868303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28868321) by changing a digit.

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 as a sum of consecutive naturals, namely, 14434170 + 14434171.

It is an arithmetic number, because the mean of its divisors is an integer number (14434171).

Almost surely, 2^28868341 is an apocalyptic number.

It is an amenable number.

28868341 is a deficient number, since it is larger than the sum of its proper divisors (1).

28868341 is an equidigital number, since it uses as much as digits as its factorization.

28868341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 40.

The square root of 28868341 is about 5372.9266698886. The cubic root of 28868341 is about 306.7660367692.

The spelling of 28868341 in words is "twenty-eight million, eight hundred sixty-eight thousand, three hundred forty-one".