28467229 has 4 divisors (see below), whose sum is σ = 32533984. Its totient is φ = 24400476.

The previous prime is 28467221. The next prime is 28467239. The reversal of 28467229 is 92276482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28467229 - 2³ = 28467221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28467191 and 28467200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28467221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033367 + ... + 2033380.

It is an arithmetic number, because the mean of its divisors is an integer number (8133496).

Almost surely, 2^28467229 is an apocalyptic number.

It is an amenable number.

28467229 is a deficient number, since it is larger than the sum of its proper divisors (4066755).

28467229 is an equidigital number, since it uses as much as digits as its factorization.

28467229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066754.

The product of its digits is 96768, while the sum is 40.

The square root of 28467229 is about 5335.4689578330. The cubic root of 28467229 is about 305.3386152361.

The spelling of 28467229 in words is "twenty-eight million, four hundred sixty-seven thousand, two hundred twenty-nine".