28036577 has 2 divisors, whose sum is σ = 28036578. Its totient is φ = 28036576.

The previous prime is 28036549. The next prime is 28036583. The reversal of 28036577 is 77563082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27206656 + 829921 = 5216^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 28036577 - 2¹² = 28032481 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28036577.

It is not a weakly prime, because it can be changed into another prime (28036597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14018288 + 14018289.

It is an arithmetic number, because the mean of its divisors is an integer number (14018289).

Almost surely, 2^28036577 is an apocalyptic number.

It is an amenable number.

28036577 is a deficient number, since it is larger than the sum of its proper divisors (1).

28036577 is an equidigital number, since it uses as much as digits as its factorization.

28036577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 28036577 is about 5294.9576957706. The cubic root of 28036577 is about 303.7910650278.

The spelling of 28036577 in words is "twenty-eight million, thirty-six thousand, five hundred seventy-seven".