3894256765 has 16 divisors (see below), whose sum is σ = 5359714560. Its totient is φ = 2660837760.

The previous prime is 3894256741. The next prime is 3894256783. The reversal of 3894256765 is 5676524983.

It is not a de Polignac number, because 3894256765 - 2¹¹ = 3894254717 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 188145 + ... + 207814.

It is an arithmetic number, because the mean of its divisors is an integer number (334982160).

Almost surely, 2^3894256765 is an apocalyptic number.

3894256765 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3894256765 is a deficient number, since it is larger than the sum of its proper divisors (1465457795).

3894256765 is a wasteful number, since it uses less digits than its factorization.

3894256765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396252.

The product of its digits is 10886400, while the sum is 55.

The square root of 3894256765 is about 62403.9803618327. The cubic root of 3894256765 is about 1573.2878702221.

The spelling of 3894256765 in words is "three billion, eight hundred ninety-four million, two hundred fifty-six thousand, seven hundred sixty-five".