4389906 has 8 divisors (see below), whose sum is σ = 8779824. Its totient is φ = 1463300.

The previous prime is 4389901. The next prime is 4389919. The reversal of 4389906 is 6099834.

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

4389906 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (4389901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365820 + ... + 365831.

It is an arithmetic number, because the mean of its divisors is an integer number (1097478).

Almost surely, 2^4389906 is an apocalyptic number.

4389906 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4389906 is a wasteful number, since it uses less digits than its factorization.

4389906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731656.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 4389906 is about 2095.2102519795. The cubic root of 4389906 is about 163.7388516778.

The spelling of 4389906 in words is "four million, three hundred eighty-nine thousand, nine hundred six".