28467057 has 4 divisors (see below), whose sum is σ = 37956080. Its totient is φ = 18978036.

The previous prime is 28467017. The next prime is 28467121. The reversal of 28467057 is 75076482.

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 not a de Polignac number, because 28467057 - 2⁷ = 28466929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28467017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4744507 + ... + 4744512.

It is an arithmetic number, because the mean of its divisors is an integer number (9489020).

Almost surely, 2^28467057 is an apocalyptic number.

It is an amenable number.

28467057 is a deficient number, since it is larger than the sum of its proper divisors (9489023).

28467057 is an equidigital number, since it uses as much as digits as its factorization.

28467057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9489022.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 28467057 is about 5335.4528392630. The cubic root of 28467057 is about 305.3380002793.

The spelling of 28467057 in words is "twenty-eight million, four hundred sixty-seven thousand, fifty-seven".