4272639 has 8 divisors (see below), whose sum is σ = 6510720. Its totient is φ = 2441496.

The previous prime is 4272613. The next prime is 4272659. The reversal of 4272639 is 9362724.

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

It is not a de Polignac number, because 4272639 - 2¹² = 4268543 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 4⁴ + 2²¹ + 7⁵ + 2²¹ + 6² + 3⁷ + 9⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272659) 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, 101709 + ... + 101750.

It is an arithmetic number, because the mean of its divisors is an integer number (813840).

Almost surely, 2^4272639 is an apocalyptic number.

4272639 is a deficient number, since it is larger than the sum of its proper divisors (2238081).

4272639 is a wasteful number, since it uses less digits than its factorization.

4272639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203469.

The product of its digits is 18144, while the sum is 33.

The square root of 4272639 is about 2067.0362841518. The cubic root of 4272639 is about 162.2676948863.

The spelling of 4272639 in words is "four million, two hundred seventy-two thousand, six hundred thirty-nine".