3936464685 has 12 divisors (see below), whose sum is σ = 6823205532. Its totient is φ = 2099447808.

The previous prime is 3936464683. The next prime is 3936464687. The reversal of 3936464685 is 5864646393.

It is an interprime number because it is at equal distance from previous prime (3936464683) and next prime (3936464687).

It can be written as a sum of positive squares in 2 ways, for example, as 435849129 + 3500615556 = 20877^2 + 59166^2 .

It is not a de Polignac number, because 3936464685 - 2¹ = 3936464683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3936464683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43738452 + ... + 43738541.

It is an arithmetic number, because the mean of its divisors is an integer number (568600461).

Almost surely, 2^3936464685 is an apocalyptic number.

It is an amenable number.

3936464685 is a deficient number, since it is larger than the sum of its proper divisors (2886740847).

3936464685 is a wasteful number, since it uses less digits than its factorization.

3936464685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87477004 (or 87477001 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The square root of 3936464685 is about 62741.2518603191. The cubic root of 3936464685 is about 1578.9514868200.

The spelling of 3936464685 in words is "three billion, nine hundred thirty-six million, four hundred sixty-four thousand, six hundred eighty-five".