28626443 has 2 divisors, whose sum is σ = 28626444. Its totient is φ = 28626442.

The previous prime is 28626427. The next prime is 28626457. The reversal of 28626443 is 34462682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28626443 - 2⁴ = 28626427 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28626463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14313221 + 14313222.

It is an arithmetic number, because the mean of its divisors is an integer number (14313222).

Almost surely, 2^28626443 is an apocalyptic number.

28626443 is a deficient number, since it is larger than the sum of its proper divisors (1).

28626443 is an equidigital number, since it uses as much as digits as its factorization.

28626443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 35.

The square root of 28626443 is about 5350.3684919826. The cubic root of 28626443 is about 305.9067987620.

The spelling of 28626443 in words is "twenty-eight million, six hundred twenty-six thousand, four hundred forty-three".