3728867 has 2 divisors, whose sum is σ = 3728868. Its totient is φ = 3728866.

The previous prime is 3728863. The next prime is 3728873. The reversal of 3728867 is 7688273.

It is a weak prime.

It is an emirp because it is prime and its reverse (7688273) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3728867 - 2² = 3728863 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3728861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864433 + 1864434.

It is an arithmetic number, because the mean of its divisors is an integer number (1864434).

Almost surely, 2^3728867 is an apocalyptic number.

3728867 is a deficient number, since it is larger than the sum of its proper divisors (1).

3728867 is an equidigital number, since it uses as much as digits as its factorization.

3728867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 3728867 is about 1931.0274467236. The cubic root of 3728867 is about 155.0692302602.

The spelling of 3728867 in words is "three million, seven hundred twenty-eight thousand, eight hundred sixty-seven".