4022247 has 4 divisors (see below), whose sum is σ = 5363000. Its totient is φ = 2681496.

The previous prime is 4022203. The next prime is 4022257. The reversal of 4022247 is 7422204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4022247 - 2¹² = 4018151 is a prime.

It is a D-number.

It is a Duffinian number.

4022247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670372 + ... + 670377.

It is an arithmetic number, because the mean of its divisors is an integer number (1340750).

Almost surely, 2^4022247 is an apocalyptic number.

4022247 is a deficient number, since it is larger than the sum of its proper divisors (1340753).

4022247 is a wasteful number, since it uses less digits than its factorization.

4022247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340752.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 4022247 is about 2005.5540381650. The cubic root of 4022247 is about 159.0338522122.

The spelling of 4022247 in words is "four million, twenty-two thousand, two hundred forty-seven".