28076717 has 2 divisors, whose sum is σ = 28076718. Its totient is φ = 28076716.

The previous prime is 28076683. The next prime is 28076753. The reversal of 28076717 is 71767082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24462916 + 3613801 = 4946^2 + 1901^2 .

It is a cyclic number.

It is not a de Polignac number, because 28076717 - 2¹² = 28072621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28076777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038358 + 14038359.

It is an arithmetic number, because the mean of its divisors is an integer number (14038359).

Almost surely, 2^28076717 is an apocalyptic number.

It is an amenable number.

28076717 is a deficient number, since it is larger than the sum of its proper divisors (1).

28076717 is an equidigital number, since it uses as much as digits as its factorization.

28076717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 28076717 is about 5298.7467386166. The cubic root of 28076717 is about 303.9359752345.

The spelling of 28076717 in words is "twenty-eight million, seventy-six thousand, seven hundred seventeen".