4389705 has 12 divisors (see below), whose sum is σ = 7608900. Its totient is φ = 2341152.

The previous prime is 4389691. The next prime is 4389727. The reversal of 4389705 is 5079834.

4389705 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1320201 + 3069504 = 1149^2 + 1752^2 .

It is not a de Polignac number, because 4389705 - 2⁵ = 4389673 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4389705.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48730 + ... + 48819.

It is an arithmetic number, because the mean of its divisors is an integer number (634075).

Almost surely, 2^4389705 is an apocalyptic number.

4389705 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4389705 is a deficient number, since it is larger than the sum of its proper divisors (3219195).

4389705 is a wasteful number, since it uses less digits than its factorization.

4389705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97560 (or 97557 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 4389705 is about 2095.1622848839. The cubic root of 4389705 is about 163.7363526105.

The spelling of 4389705 in words is "four million, three hundred eighty-nine thousand, seven hundred five".