28200677 has 2 divisors, whose sum is σ = 28200678. Its totient is φ = 28200676.

The previous prime is 28200659. The next prime is 28200721. The reversal of 28200677 is 77600282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24910081 + 3290596 = 4991^2 + 1814^2 .

It is a cyclic number.

It is not a de Polignac number, because 28200677 - 2²⁰ = 27152101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28203677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14100338 + 14100339.

It is an arithmetic number, because the mean of its divisors is an integer number (14100339).

Almost surely, 2^28200677 is an apocalyptic number.

It is an amenable number.

28200677 is a deficient number, since it is larger than the sum of its proper divisors (1).

28200677 is an equidigital number, since it uses as much as digits as its factorization.

28200677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 28200677 is about 5310.4309617959. The cubic root of 28200677 is about 304.3826156797.

The spelling of 28200677 in words is "twenty-eight million, two hundred thousand, six hundred seventy-seven".