28409153 has 2 divisors, whose sum is σ = 28409154. Its totient is φ = 28409152.

The previous prime is 28409131. The next prime is 28409177. The reversal of 28409153 is 35190482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 1607824 = 5177^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 28409153 - 2⁶ = 28409089 is a prime.

It is not a weakly prime, because it can be changed into another prime (28409753) 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, 14204576 + 14204577.

It is an arithmetic number, because the mean of its divisors is an integer number (14204577).

Almost surely, 2^28409153 is an apocalyptic number.

It is an amenable number.

28409153 is a deficient number, since it is larger than the sum of its proper divisors (1).

28409153 is an equidigital number, since it uses as much as digits as its factorization.

28409153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28409153 is about 5330.0237335306. The cubic root of 28409153 is about 305.1308334152.

The spelling of 28409153 in words is "twenty-eight million, four hundred nine thousand, one hundred fifty-three".