4039734947 has 2 divisors, whose sum is σ = 4039734948. Its totient is φ = 4039734946.

The previous prime is 4039734883. The next prime is 4039734949. The reversal of 4039734947 is 7494379304.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4039734947 - 2⁶ = 4039734883 is a prime.

Together with 4039734949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4039734895 and 4039734904.

It is not a weakly prime, because it can be changed into another prime (4039734949) 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 as a sum of consecutive naturals, namely, 2019867473 + 2019867474.

It is an arithmetic number, because the mean of its divisors is an integer number (2019867474).

Almost surely, 2^4039734947 is an apocalyptic number.

4039734947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4039734947 is an equidigital number, since it uses as much as digits as its factorization.

4039734947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The square root of 4039734947 is about 63558.9092653422. The cubic root of 4039734947 is about 1592.6400172952.

The spelling of 4039734947 in words is "four billion, thirty-nine million, seven hundred thirty-four thousand, nine hundred forty-seven".