3872712065 has 4 divisors (see below), whose sum is σ = 4647254484. Its totient is φ = 3098169648.

The previous prime is 3872712059. The next prime is 3872712071. The reversal of 3872712065 is 5602172783.

3872712065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3872712059) and next prime (3872712071).

It can be written as a sum of positive squares in 2 ways, for example, as 773340481 + 3099371584 = 27809^2 + 55672^2 .

It is a cyclic number.

It is not a de Polignac number, because 3872712065 - 2⁴ = 3872712049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387271202 + ... + 387271211.

It is an arithmetic number, because the mean of its divisors is an integer number (1161813621).

Almost surely, 2^3872712065 is an apocalyptic number.

It is an amenable number.

3872712065 is a deficient number, since it is larger than the sum of its proper divisors (774542419).

3872712065 is an equidigital number, since it uses as much as digits as its factorization.

3872712065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774542418.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 3872712065 is about 62231.1181403645. The cubic root of 3872712065 is about 1570.3811352389.

The spelling of 3872712065 in words is "three billion, eight hundred seventy-two million, seven hundred twelve thousand, sixty-five".