12039999 has 8 divisors (see below), whose sum is σ = 16102320. Its totient is φ = 8002176.

The previous prime is 12039991. The next prime is 12040001. The reversal of 12039999 is 99993021.

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 12039999 - 2³ = 12039991 is a prime.

12039999 is a modest number, since divided by 9999 gives 1203 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12039999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039991) 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, 4944 + ... + 6965.

It is an arithmetic number, because the mean of its divisors is an integer number (2012790).

Almost surely, 2^12039999 is an apocalyptic number.

12039999 is a deficient number, since it is larger than the sum of its proper divisors (4062321).

12039999 is a wasteful number, since it uses less digits than its factorization.

12039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12249.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 12039999 is about 3469.8701704819. The cubic root of 12039999 is about 229.1969409848.

The spelling of 12039999 in words is "twelve million, thirty-nine thousand, nine hundred ninety-nine".