28150469 has 2 divisors, whose sum is σ = 28150470. Its totient is φ = 28150468.

The previous prime is 28150357. The next prime is 28150481. The reversal of 28150469 is 96405182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14364100 + 13786369 = 3790^2 + 3713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28150469 is a prime.

It is a super-2 number, since 2×28150469² = 1584897809839922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28150069) 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, 14075234 + 14075235.

It is an arithmetic number, because the mean of its divisors is an integer number (14075235).

Almost surely, 2^28150469 is an apocalyptic number.

It is an amenable number.

28150469 is a deficient number, since it is larger than the sum of its proper divisors (1).

28150469 is an equidigital number, since it uses as much as digits as its factorization.

28150469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28150469 is about 5305.7015558736. The cubic root of 28150469 is about 304.2018691811.

The spelling of 28150469 in words is "twenty-eight million, one hundred fifty thousand, four hundred sixty-nine".