4220247 has 16 divisors (see below), whose sum is σ = 6064128. Its totient is φ = 2603040.

The previous prime is 4220243. The next prime is 4220269. The reversal of 4220247 is 7420224.

It is not a de Polignac number, because 4220247 - 2² = 4220243 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 2¹² + 2¹⁴ + 0 + 2²² + 4⁶ + 7³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153 + ... + 3125.

It is an arithmetic number, because the mean of its divisors is an integer number (379008).

Almost surely, 2^4220247 is an apocalyptic number.

4220247 is a deficient number, since it is larger than the sum of its proper divisors (1843881).

4220247 is a wasteful number, since it uses less digits than its factorization.

4220247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030.

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

The square root of 4220247 is about 2054.3239763971. The cubic root of 4220247 is about 161.6017117217.

The spelling of 4220247 in words is "four million, two hundred twenty thousand, two hundred forty-seven".