28265767 has 2 divisors, whose sum is σ = 28265768. Its totient is φ = 28265766.

The previous prime is 28265737. The next prime is 28265791. The reversal of 28265767 is 76756282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28265767 - 2⁷ = 28265639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28265717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14132883 + 14132884.

It is an arithmetic number, because the mean of its divisors is an integer number (14132884).

Almost surely, 2^28265767 is an apocalyptic number.

28265767 is a deficient number, since it is larger than the sum of its proper divisors (1).

28265767 is an equidigital number, since it uses as much as digits as its factorization.

28265767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 28265767 is about 5316.5559340611. Note that the first 3 decimals coincide. The cubic root of 28265767 is about 304.6166176397.

It can be divided in two parts, 282 and 65767, that added together give a square (66049 = 257²).

The spelling of 28265767 in words is "twenty-eight million, two hundred sixty-five thousand, seven hundred sixty-seven".