3964209317 has 4 divisors (see below), whose sum is σ = 4100906220. Its totient is φ = 3827512416.

The previous prime is 3964209283. The next prime is 3964209349. The reversal of 3964209317 is 7139024693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7139024693 = 17 ⋅419942629.

It can be written as a sum of positive squares in 2 ways, for example, as 2665760161 + 1298449156 = 51631^2 + 36034^2 .

It is a cyclic number.

It is not a de Polignac number, because 3964209317 - 2¹⁰ = 3964208293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964209217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68348408 + ... + 68348465.

It is an arithmetic number, because the mean of its divisors is an integer number (1025226555).

Almost surely, 2^3964209317 is an apocalyptic number.

It is an amenable number.

3964209317 is a deficient number, since it is larger than the sum of its proper divisors (136696903).

3964209317 is a wasteful number, since it uses less digits than its factorization.

3964209317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136696902.

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 3964209317 is about 62961.9672262549. The cubic root of 3964209317 is about 1582.6523464079.

The spelling of 3964209317 in words is "three billion, nine hundred sixty-four million, two hundred nine thousand, three hundred seventeen".