4247279 has 8 divisors (see below), whose sum is σ = 4615680. Its totient is φ = 3893400.

The previous prime is 4247273. The next prime is 4247281. The reversal of 4247279 is 9727424.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4247279 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 2⁹ + 4¹¹ + 7⁵ + 2¹³ + 7⁵ + 9⁴ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4247273) 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 in 7 ways as a sum of consecutive naturals, for example, 3017 + ... + 4194.

It is an arithmetic number, because the mean of its divisors is an integer number (576960).

Almost surely, 2^4247279 is an apocalyptic number.

4247279 is a deficient number, since it is larger than the sum of its proper divisors (368401).

4247279 is a wasteful number, since it uses less digits than its factorization.

4247279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261.

The product of its digits is 28224, while the sum is 35.

The square root of 4247279 is about 2060.8927677101. The cubic root of 4247279 is about 161.9460141203.

The spelling of 4247279 in words is "four million, two hundred forty-seven thousand, two hundred seventy-nine".