3929742461 has 2 divisors, whose sum is σ = 3929742462. Its totient is φ = 3929742460.

The previous prime is 3929742451. The next prime is 3929742463. The reversal of 3929742461 is 1642479293.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2071615225 + 1858127236 = 45515^2 + 43106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3929742461 is a prime.

Together with 3929742463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3929742463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964871230 + 1964871231.

It is an arithmetic number, because the mean of its divisors is an integer number (1964871231).

Almost surely, 2^3929742461 is an apocalyptic number.

It is an amenable number.

3929742461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3929742461 is an equidigital number, since it uses as much as digits as its factorization.

3929742461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 47.

The square root of 3929742461 is about 62687.6579639087. The cubic root of 3929742461 is about 1578.0521931662.

The spelling of 3929742461 in words is "three billion, nine hundred twenty-nine million, seven hundred forty-two thousand, four hundred sixty-one".