3861996726 has 32 divisors (see below), whose sum is σ = 9346682880. Its totient is φ = 1038519936.

The previous prime is 3861996683. The next prime is 3861996727. The reversal of 3861996726 is 6276991683.

It is a happy number.

3861996726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861996727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2703766 + ... + 2705193.

It is an arithmetic number, because the mean of its divisors is an integer number (292083840).

Almost surely, 2^3861996726 is an apocalyptic number.

3861996726 is an abundant number, since it is smaller than the sum of its proper divisors (5484686154).

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

3861996726 is a wasteful number, since it uses less digits than its factorization.

3861996726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408988.

The product of its digits is 5878656, while the sum is 57.

The square root of 3861996726 is about 62144.9654115279. The cubic root of 3861996726 is about 1568.9314440459.

The spelling of 3861996726 in words is "three billion, eight hundred sixty-one million, nine hundred ninety-six thousand, seven hundred twenty-six".