28126073 has 2 divisors, whose sum is σ = 28126074. Its totient is φ = 28126072.

The previous prime is 28126057. The next prime is 28126103. The reversal of 28126073 is 37062182.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28015849 + 110224 = 5293^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 28126073 - 2⁴ = 28126057 is a prime.

It is not a weakly prime, because it can be changed into another prime (28126003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14063036 + 14063037.

It is an arithmetic number, because the mean of its divisors is an integer number (14063037).

Almost surely, 2^28126073 is an apocalyptic number.

It is an amenable number.

28126073 is a deficient number, since it is larger than the sum of its proper divisors (1).

28126073 is an equidigital number, since it uses as much as digits as its factorization.

28126073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 28126073 is about 5303.4020213444. The cubic root of 28126073 is about 304.1139671089.

The spelling of 28126073 in words is "twenty-eight million, one hundred twenty-six thousand, seventy-three".