3869691697 has 2 divisors, whose sum is σ = 3869691698. Its totient is φ = 3869691696.

The previous prime is 3869691659. The next prime is 3869691719. The reversal of 3869691697 is 7961969683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3867720481 + 1971216 = 62191^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 3869691697 - 2¹⁹ = 3869167409 is a prime.

It is not a weakly prime, because it can be changed into another prime (3869691797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934845848 + 1934845849.

It is an arithmetic number, because the mean of its divisors is an integer number (1934845849).

Almost surely, 2^3869691697 is an apocalyptic number.

It is an amenable number.

3869691697 is a deficient number, since it is larger than the sum of its proper divisors (1).

3869691697 is an equidigital number, since it uses as much as digits as its factorization.

3869691697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26453952, while the sum is 64.

The square root of 3869691697 is about 62206.8460621498. The cubic root of 3869691697 is about 1569.9727769226.

The spelling of 3869691697 in words is "three billion, eight hundred sixty-nine million, six hundred ninety-one thousand, six hundred ninety-seven".