3820506765 has 32 divisors (see below), whose sum is σ = 6165072000. Its totient is φ = 2020235520.

The previous prime is 3820506689. The next prime is 3820506769. The reversal of 3820506765 is 5676050283.

It is not a de Polignac number, because 3820506765 - 2¹⁴ = 3820490381 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820506769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1583410 + ... + 1585820.

It is an arithmetic number, because the mean of its divisors is an integer number (192658500).

Almost surely, 2^3820506765 is an apocalyptic number.

It is an amenable number.

3820506765 is a deficient number, since it is larger than the sum of its proper divisors (2344565235).

3820506765 is a wasteful number, since it uses less digits than its factorization.

3820506765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277.

The product of its (nonzero) digits is 302400, while the sum is 42.

The square root of 3820506765 is about 61810.2480580688. The cubic root of 3820506765 is about 1563.2927879984.

The spelling of 3820506765 in words is "three billion, eight hundred twenty million, five hundred six thousand, seven hundred sixty-five".