3729341639 has 2 divisors, whose sum is σ = 3729341640. Its totient is φ = 3729341638.

The previous prime is 3729341621. The next prime is 3729341653. The reversal of 3729341639 is 9361439273.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3729341639 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 3729341593 and 3729341602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3729341339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1864670819 + 1864670820.

It is an arithmetic number, because the mean of its divisors is an integer number (1864670820).

Almost surely, 2^3729341639 is an apocalyptic number.

3729341639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3729341639 is an equidigital number, since it uses as much as digits as its factorization.

3729341639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 734832, while the sum is 47.

The square root of 3729341639 is about 61068.3358132510. The cubic root of 3729341639 is about 1550.7580945093.

The spelling of 3729341639 in words is "three billion, seven hundred twenty-nine million, three hundred forty-one thousand, six hundred thirty-nine".