4284639 has 12 divisors (see below), whose sum is σ = 6294600. Its totient is φ = 2807664.

The previous prime is 4284613. The next prime is 4284641. The reversal of 4284639 is 9364824.

It is a happy number.

It is not a de Polignac number, because 4284639 - 2⁵ = 4284607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4284659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3504 + ... + 4565.

It is an arithmetic number, because the mean of its divisors is an integer number (524550).

Almost surely, 2^4284639 is an apocalyptic number.

4284639 is a deficient number, since it is larger than the sum of its proper divisors (2009961).

4284639 is a wasteful number, since it uses less digits than its factorization.

4284639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134 (or 8131 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 4284639 is about 2069.9369555617. The cubic root of 4284639 is about 162.4194662090.

It can be divided in two parts, 42 and 84639, that added together give a square (84681 = 291²).

The spelling of 4284639 in words is "four million, two hundred eighty-four thousand, six hundred thirty-nine".