28413269 has 2 divisors, whose sum is σ = 28413270. Its totient is φ = 28413268.

The previous prime is 28413263. The next prime is 28413289. The reversal of 28413269 is 96231482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23639044 + 4774225 = 4862^2 + 2185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28413269 is a prime.

It is a super-2 number, since 2×28413269² = 1614627710532722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28413263) 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, 14206634 + 14206635.

It is an arithmetic number, because the mean of its divisors is an integer number (14206635).

Almost surely, 2^28413269 is an apocalyptic number.

It is an amenable number.

28413269 is a deficient number, since it is larger than the sum of its proper divisors (1).

28413269 is an equidigital number, since it uses as much as digits as its factorization.

28413269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 28413269 is about 5330.4098341497. The cubic root of 28413269 is about 305.1455687819.

It can be divided in two parts, 28413 and 269, that added together give a palindrome (28682).

The spelling of 28413269 in words is "twenty-eight million, four hundred thirteen thousand, two hundred sixty-nine".