3688886869 has 4 divisors (see below), whose sum is σ = 3689765440. Its totient is φ = 3688008300.

The previous prime is 3688886857. The next prime is 3688886897. The reversal of 3688886869 is 9686888863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3688886869 - 2¹¹ = 3688884821 is a prime.

It is a super-2 number, since 2×3688886869² = 27215772664561246322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3688886798 and 3688886807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3688886269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432957 + ... + 441394.

It is an arithmetic number, because the mean of its divisors is an integer number (922441360).

Almost surely, 2^3688886869 is an apocalyptic number.

It is an amenable number.

3688886869 is a deficient number, since it is larger than the sum of its proper divisors (878571).

3688886869 is an equidigital number, since it uses as much as digits as its factorization.

3688886869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878570.

The product of its digits is 191102976, while the sum is 70.

The square root of 3688886869 is about 60736.2072325890. The cubic root of 3688886869 is about 1545.1303107831.

The spelling of 3688886869 in words is "three billion, six hundred eighty-eight million, eight hundred eighty-six thousand, eight hundred sixty-nine".