28942867 has 2 divisors, whose sum is σ = 28942868. Its totient is φ = 28942866.

The previous prime is 28942829. The next prime is 28942873. The reversal of 28942867 is 76824982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28942867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28942807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14471433 + 14471434.

It is an arithmetic number, because the mean of its divisors is an integer number (14471434).

Almost surely, 2^28942867 is an apocalyptic number.

28942867 is a deficient number, since it is larger than the sum of its proper divisors (1).

28942867 is an equidigital number, since it uses as much as digits as its factorization.

28942867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 46.

The square root of 28942867 is about 5379.8575259945. The cubic root of 28942867 is about 307.0297905287.

The spelling of 28942867 in words is "twenty-eight million, nine hundred forty-two thousand, eight hundred sixty-seven".