12047771 has 2 divisors, whose sum is σ = 12047772. Its totient is φ = 12047770.

The previous prime is 12047753. The next prime is 12047803. The reversal of 12047771 is 17774021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12047771 - 2¹⁴ = 12031387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12043771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6023885 + 6023886.

It is an arithmetic number, because the mean of its divisors is an integer number (6023886).

Almost surely, 2^12047771 is an apocalyptic number.

12047771 is a deficient number, since it is larger than the sum of its proper divisors (1).

12047771 is an equidigital number, since it uses as much as digits as its factorization.

12047771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 12047771 is about 3470.9899164359. The cubic root of 12047771 is about 229.2462470651.

The spelling of 12047771 in words is "twelve million, forty-seven thousand, seven hundred seventy-one".