3688369685 has 32 divisors (see below), whose sum is σ = 5942668032. Its totient is φ = 2122375680.

The previous prime is 3688369649. The next prime is 3688369721. The reversal of 3688369685 is 5869638863.

3688369685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3688369649) and next prime (3688369721).

It is not a de Polignac number, because 3688369685 - 2²⁴ = 3671592469 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363464 + ... + 373473.

It is an arithmetic number, because the mean of its divisors is an integer number (185708376).

Almost surely, 2^3688369685 is an apocalyptic number.

3688369685 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3688369685 is a deficient number, since it is larger than the sum of its proper divisors (2254298347).

3688369685 is a wasteful number, since it uses less digits than its factorization.

3688369685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 736973.

The product of its digits is 44789760, while the sum is 62.

The square root of 3688369685 is about 60731.9494582547. The cubic root of 3688369685 is about 1545.0580980307.

It can be divided in two parts, 3688 and 369685, that added together give a palindrome (373373).

The spelling of 3688369685 in words is "three billion, six hundred eighty-eight million, three hundred sixty-nine thousand, six hundred eighty-five".