28622267 has 2 divisors, whose sum is σ = 28622268. Its totient is φ = 28622266.

The previous prime is 28622261. The next prime is 28622287. The reversal of 28622267 is 76222682.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28622267 - 2¹² = 28618171 is a prime.

It is not a weakly prime, because it can be changed into another prime (28622261) 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, 14311133 + 14311134.

It is an arithmetic number, because the mean of its divisors is an integer number (14311134).

Almost surely, 2^28622267 is an apocalyptic number.

28622267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28622267 is an equidigital number, since it uses as much as digits as its factorization.

28622267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 28622267 is about 5349.9782242547. The cubic root of 28622267 is about 305.8919229015.

The spelling of 28622267 in words is "twenty-eight million, six hundred twenty-two thousand, two hundred sixty-seven".