3709870643 has 2 divisors, whose sum is σ = 3709870644. Its totient is φ = 3709870642.

The previous prime is 3709870589. The next prime is 3709870649. The reversal of 3709870643 is 3460789073.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3709870643 - 2⁸ = 3709870387 is a prime.

It is not a weakly prime, because it can be changed into another prime (3709870649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1854935321 + 1854935322.

It is an arithmetic number, because the mean of its divisors is an integer number (1854935322).

Almost surely, 2^3709870643 is an apocalyptic number.

3709870643 is a deficient number, since it is larger than the sum of its proper divisors (1).

3709870643 is an equidigital number, since it uses as much as digits as its factorization.

3709870643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 3709870643 is about 60908.7074481145. The cubic root of 3709870643 is about 1548.0545335913.

The spelling of 3709870643 in words is "three billion, seven hundred nine million, eight hundred seventy thousand, six hundred forty-three".