12038999 has 4 divisors (see below), whose sum is σ = 13758864. Its totient is φ = 10319136.

The previous prime is 12038993. The next prime is 12039007. The reversal of 12038999 is 99983021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99983021 = 239 ⋅418339.

It is a cyclic number.

It is not a de Polignac number, because 12038999 - 2²⁰ = 10990423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12038993) 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, 859922 + ... + 859935.

It is an arithmetic number, because the mean of its divisors is an integer number (3439716).

Almost surely, 2^12038999 is an apocalyptic number.

12038999 is a deficient number, since it is larger than the sum of its proper divisors (1719865).

12038999 is an equidigital number, since it uses as much as digits as its factorization.

12038999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719864.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 12038999 is about 3469.7260698793. The cubic root of 12038999 is about 229.1905953783.

The spelling of 12038999 in words is "twelve million, thirty-eight thousand, nine hundred ninety-nine".