3866691707 has 4 divisors (see below), whose sum is σ = 3866884416. Its totient is φ = 3866499000.

The previous prime is 3866691643. The next prime is 3866691727. The reversal of 3866691707 is 7071966683.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7071966683 = 53507 ⋅132169.

It is a cyclic number.

It is not a de Polignac number, because 3866691707 - 2⁶ = 3866691643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3866691727) 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 3 ways as a sum of consecutive naturals, for example, 62228 + ... + 107729.

It is an arithmetic number, because the mean of its divisors is an integer number (966721104).

Almost surely, 2^3866691707 is an apocalyptic number.

3866691707 is a deficient number, since it is larger than the sum of its proper divisors (192709).

3866691707 is a wasteful number, since it uses less digits than its factorization.

3866691707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192708.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 3866691707 is about 62182.7283656804. The cubic root of 3866691707 is about 1569.5669633465.

The spelling of 3866691707 in words is "three billion, eight hundred sixty-six million, six hundred ninety-one thousand, seven hundred seven".