4220047 has 4 divisors (see below), whose sum is σ = 4544680. Its totient is φ = 3895416.

The previous prime is 4220039. The next prime is 4220053. The reversal of 4220047 is 7400224.

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

It is a cyclic number.

It is not a de Polignac number, because 4220047 - 2³ = 4220039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162297 + ... + 162322.

It is an arithmetic number, because the mean of its divisors is an integer number (1136170).

Almost surely, 2^4220047 is an apocalyptic number.

4220047 is a deficient number, since it is larger than the sum of its proper divisors (324633).

4220047 is a wasteful number, since it uses less digits than its factorization.

4220047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324632.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4220047 is about 2054.2752980066. The cubic root of 4220047 is about 161.5991588812.

The spelling of 4220047 in words is "four million, two hundred twenty thousand, forty-seven".