3861440723 has 8 divisors (see below), whose sum is σ = 4414924800. Its totient is φ = 3308419080.

The previous prime is 3861440659. The next prime is 3861440729. The reversal of 3861440723 is 3270441683.

3861440723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3861440723 - 2⁶ = 3861440659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3861440729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97523 + ... + 131276.

It is an arithmetic number, because the mean of its divisors is an integer number (551865600).

Almost surely, 2^3861440723 is an apocalyptic number.

3861440723 is a deficient number, since it is larger than the sum of its proper divisors (553484077).

3861440723 is a wasteful number, since it uses less digits than its factorization.

3861440723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231217.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 3861440723 is about 62140.4918149189. The cubic root of 3861440723 is about 1568.8561485863.

The spelling of 3861440723 in words is "three billion, eight hundred sixty-one million, four hundred forty thousand, seven hundred twenty-three".