4221867 has 16 divisors (see below), whose sum is σ = 6126848. Its totient is φ = 2570400.

The previous prime is 4221851. The next prime is 4221883. The reversal of 4221867 is 7681224.

It is an interprime number because it is at equal distance from previous prime (4221851) and next prime (4221883).

It is not a de Polignac number, because 4221867 - 2⁴ = 4221851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4221827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492 + ... + 4542.

It is an arithmetic number, because the mean of its divisors is an integer number (382928).

Almost surely, 2^4221867 is an apocalyptic number.

4221867 is a deficient number, since it is larger than the sum of its proper divisors (1904981).

4221867 is a wasteful number, since it uses less digits than its factorization.

4221867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its digits is 5376, while the sum is 30.

The square root of 4221867 is about 2054.7182288577. The cubic root of 4221867 is about 161.6223867582.

The spelling of 4221867 in words is "four million, two hundred twenty-one thousand, eight hundred sixty-seven".