3992347 has 2 divisors, whose sum is σ = 3992348. Its totient is φ = 3992346.

The previous prime is 3992341. The next prime is 3992357. The reversal of 3992347 is 7432993.

It is a weak prime.

It is an emirp because it is prime and its reverse (7432993) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3992347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3992341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996173 + 1996174.

It is an arithmetic number, because the mean of its divisors is an integer number (1996174).

Almost surely, 2^3992347 is an apocalyptic number.

3992347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3992347 is an equidigital number, since it uses as much as digits as its factorization.

3992347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 37.

The square root of 3992347 is about 1998.0858339921. The cubic root of 3992347 is about 158.6388040624.

The spelling of 3992347 in words is "three million, nine hundred ninety-two thousand, three hundred forty-seven".