3689903826 has 48 divisors (see below), whose sum is σ = 9161131200. Its totient is φ = 1051462944.

The previous prime is 3689903821. The next prime is 3689903843. The reversal of 3689903826 is 6283099863.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3689903821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9120 + ... + 86388.

It is an arithmetic number, because the mean of its divisors is an integer number (190856900).

Almost surely, 2^3689903826 is an apocalyptic number.

3689903826 is an abundant number, since it is smaller than the sum of its proper divisors (5471227374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3689903826 is a wasteful number, since it uses less digits than its factorization.

3689903826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77663 (or 77660 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 3689903826 is about 60744.5785729064. The cubic root of 3689903826 is about 1545.2722855638.

It can be divided in two parts, 368990 and 3826, that added together give a triangular number (372816 = T₈₆₃).

The spelling of 3689903826 in words is "three billion, six hundred eighty-nine million, nine hundred three thousand, eight hundred twenty-six".