28762417 has 2 divisors, whose sum is σ = 28762418. Its totient is φ = 28762416.

The previous prime is 28762387. The next prime is 28762421. The reversal of 28762417 is 71426782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25391521 + 3370896 = 5039^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 28762417 - 2¹⁹ = 28238129 is a prime.

It is not a weakly prime, because it can be changed into another prime (28762427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14381208 + 14381209.

It is an arithmetic number, because the mean of its divisors is an integer number (14381209).

Almost surely, 2^28762417 is an apocalyptic number.

It is an amenable number.

28762417 is a deficient number, since it is larger than the sum of its proper divisors (1).

28762417 is an equidigital number, since it uses as much as digits as its factorization.

28762417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 37.

The square root of 28762417 is about 5363.0604136071. The cubic root of 28762417 is about 306.3903806230.

The spelling of 28762417 in words is "twenty-eight million, seven hundred sixty-two thousand, four hundred seventeen".