28574867 has 2 divisors, whose sum is σ = 28574868. Its totient is φ = 28574866.

The previous prime is 28574851. The next prime is 28574881. The reversal of 28574867 is 76847582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28574867 - 2⁴ = 28574851 is a prime.

It is not a weakly prime, because it can be changed into another prime (28574837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14287433 + 14287434.

It is an arithmetic number, because the mean of its divisors is an integer number (14287434).

Almost surely, 2^28574867 is an apocalyptic number.

28574867 is a deficient number, since it is larger than the sum of its proper divisors (1).

28574867 is an equidigital number, since it uses as much as digits as its factorization.

28574867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 47.

The square root of 28574867 is about 5345.5464641138. The cubic root of 28574867 is about 305.7229718260.

The spelling of 28574867 in words is "twenty-eight million, five hundred seventy-four thousand, eight hundred sixty-seven".