10009439 has 8 divisors (see below), whose sum is σ = 11394432. Its totient is φ = 8703640.

The previous prime is 10009423. The next prime is 10009459. The reversal of 10009439 is 93490001.

It is a happy number.

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

It is not a de Polignac number, because 10009439 - 2⁴ = 10009423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10009459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19529 + ... + 20034.

It is an arithmetic number, because the mean of its divisors is an integer number (1424304).

Almost surely, 2^10009439 is an apocalyptic number.

10009439 is a deficient number, since it is larger than the sum of its proper divisors (1384993).

10009439 is a wasteful number, since it uses less digits than its factorization.

10009439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39597.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 10009439 is about 3163.7697450984. The cubic root of 10009439 is about 215.5112333835.

The spelling of 10009439 in words is "ten million, nine thousand, four hundred thirty-nine".