4254639 has 4 divisors (see below), whose sum is σ = 5672856. Its totient is φ = 2836424.

The previous prime is 4254637. The next prime is 4254643. The reversal of 4254639 is 9364524.

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 4254639 - 2¹ = 4254637 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 2⁵ + 5 + 4¹¹ + 6³ + 3¹⁰ + 9 .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4254637) 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 3 ways as a sum of consecutive naturals, for example, 709104 + ... + 709109.

It is an arithmetic number, because the mean of its divisors is an integer number (1418214).

Almost surely, 2^4254639 is an apocalyptic number.

4254639 is a deficient number, since it is larger than the sum of its proper divisors (1418217).

4254639 is a wasteful number, since it uses less digits than its factorization.

4254639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418216.

The product of its digits is 25920, while the sum is 33.

The square root of 4254639 is about 2062.6776287147. The cubic root of 4254639 is about 162.0395041596.

The spelling of 4254639 in words is "four million, two hundred fifty-four thousand, six hundred thirty-nine".