4999867 has 2 divisors, whose sum is σ = 4999868. Its totient is φ = 4999866.

The previous prime is 4999849. The next prime is 4999871. The reversal of 4999867 is 7689994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4999867 - 2¹⁹ = 4475579 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4999667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2499933 + 2499934.

It is an arithmetic number, because the mean of its divisors is an integer number (2499934).

Almost surely, 2^4999867 is an apocalyptic number.

4999867 is a deficient number, since it is larger than the sum of its proper divisors (1).

4999867 is an equidigital number, since it uses as much as digits as its factorization.

4999867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 4999867 is about 2236.0382375979. The cubic root of 4999867 is about 170.9960784756.

The spelling of 4999867 in words is "four million, nine hundred ninety-nine thousand, eight hundred sixty-seven".