12047739 has 16 divisors (see below), whose sum is σ = 17788800. Its totient is φ = 7191360.

The previous prime is 12047689. The next prime is 12047753. The reversal of 12047739 is 93774021.

It is not a de Polignac number, because 12047739 - 2⁹ = 12047227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12047039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (1111800).

Almost surely, 2^12047739 is an apocalyptic number.

12047739 is a deficient number, since it is larger than the sum of its proper divisors (5741061).

12047739 is a wasteful number, since it uses less digits than its factorization.

12047739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 12047739 is about 3470.9853067969. The cubic root of 12047739 is about 229.2460440985.

The spelling of 12047739 in words is "twelve million, forty-seven thousand, seven hundred thirty-nine".