28447467 has 16 divisors (see below), whose sum is σ = 39207168. Its totient is φ = 18335520.

The previous prime is 28447451. The next prime is 28447483. The reversal of 28447467 is 76474482.

It is an interprime number because it is at equal distance from previous prime (28447451) and next prime (28447483).

It is not a de Polignac number, because 28447467 - 2⁴ = 28447451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28447967) 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 in 15 ways as a sum of consecutive naturals, for example, 12217 + ... + 14357.

It is an arithmetic number, because the mean of its divisors is an integer number (2450448).

Almost surely, 2^28447467 is an apocalyptic number.

28447467 is a deficient number, since it is larger than the sum of its proper divisors (10759701).

28447467 is a wasteful number, since it uses less digits than its factorization.

28447467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290.

The product of its digits is 301056, while the sum is 42.

The square root of 28447467 is about 5333.6166903894. The cubic root of 28447467 is about 305.2679433471.

The spelling of 28447467 in words is "twenty-eight million, four hundred forty-seven thousand, four hundred sixty-seven".