3938696065 has 16 divisors (see below), whose sum is σ = 5065233408. Its totient is φ = 2932497216.

The previous prime is 3938696063. The next prime is 3938696071. The reversal of 3938696065 is 5606968393.

It is a cyclic number.

It is not a de Polignac number, because 3938696065 - 2¹ = 3938696063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3938695997 and 3938696015.

It is not an unprimeable number, because it can be changed into a prime (3938696063) 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 in 15 ways as a sum of consecutive naturals, for example, 458577 + ... + 467086.

It is an arithmetic number, because the mean of its divisors is an integer number (316577088).

Almost surely, 2^3938696065 is an apocalyptic number.

It is an amenable number.

3938696065 is a deficient number, since it is larger than the sum of its proper divisors (1126537343).

3938696065 is a wasteful number, since it uses less digits than its factorization.

3938696065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925728.

The product of its (nonzero) digits is 6298560, while the sum is 55.

The square root of 3938696065 is about 62759.0317404595. The cubic root of 3938696065 is about 1579.2497726801.

The spelling of 3938696065 in words is "three billion, nine hundred thirty-eight million, six hundred ninety-six thousand, sixty-five".