28243467 has 12 divisors (see below), whose sum is σ = 46624240. Its totient is φ = 16139088.

The previous prime is 28243451. The next prime is 28243483. The reversal of 28243467 is 76434282.

It is an interprime number because it is at equal distance from previous prime (28243451) and next prime (28243483).

It is not a de Polignac number, because 28243467 - 2⁴ = 28243451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28243417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224092 + ... + 224217.

Almost surely, 2^28243467 is an apocalyptic number.

28243467 is a deficient number, since it is larger than the sum of its proper divisors (18380773).

28243467 is a wasteful number, since it uses less digits than its factorization.

28243467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448322 (or 448319 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 28243467 is about 5314.4582978889. The cubic root of 28243467 is about 304.5364884647.

The spelling of 28243467 in words is "twenty-eight million, two hundred forty-three thousand, four hundred sixty-seven".