3189994747 has 2 divisors, whose sum is σ = 3189994748. Its totient is φ = 3189994746.

The previous prime is 3189994739. The next prime is 3189994771. The reversal of 3189994747 is 7474999813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3189994747 - 2³ = 3189994739 is a prime.

It is not a weakly prime, because it can be changed into another prime (3189994727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594997373 + 1594997374.

It is an arithmetic number, because the mean of its divisors is an integer number (1594997374).

Almost surely, 2^3189994747 is an apocalyptic number.

3189994747 is a deficient number, since it is larger than the sum of its proper divisors (1).

3189994747 is an equidigital number, since it uses as much as digits as its factorization.

3189994747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 61.

The square root of 3189994747 is about 56480.0384826356. The cubic root of 3189994747 is about 1472.0751765508.

The spelling of 3189994747 in words is "three billion, one hundred eighty-nine million, nine hundred ninety-four thousand, seven hundred forty-seven".