28467469 has 4 divisors (see below), whose sum is σ = 30142044. Its totient is φ = 26792896.

The previous prime is 28467437. The next prime is 28467497. The reversal of 28467469 is 96476482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26677225 + 1790244 = 5165^2 + 1338^2 .

It is a cyclic number.

It is not a de Polignac number, because 28467469 - 2⁵ = 28467437 is a prime.

It is a super-2 number, since 2×28467469² = 1620793582531922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28467869) 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, 837262 + ... + 837295.

It is an arithmetic number, because the mean of its divisors is an integer number (7535511).

Almost surely, 2^28467469 is an apocalyptic number.

It is an amenable number.

28467469 is a deficient number, since it is larger than the sum of its proper divisors (1674575).

28467469 is a wasteful number, since it uses less digits than its factorization.

28467469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674574.

The product of its digits is 580608, while the sum is 46.

The square root of 28467469 is about 5335.4914487796. The cubic root of 28467469 is about 305.3394733112.

The spelling of 28467469 in words is "twenty-eight million, four hundred sixty-seven thousand, four hundred sixty-nine".