3964399223 has 4 divisors (see below), whose sum is σ = 3981711240. Its totient is φ = 3947087208.

The previous prime is 3964399217. The next prime is 3964399249. The reversal of 3964399223 is 3229934693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3229934693 = 5087 ⋅634939.

It is a cyclic number.

It is not a de Polignac number, because 3964399223 - 2⁴ = 3964399207 is a prime.

It is a super-2 number, since 2×3964399223² = 31432922398646007458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964399823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8655665 + ... + 8656122.

It is an arithmetic number, because the mean of its divisors is an integer number (995427810).

Almost surely, 2^3964399223 is an apocalyptic number.

3964399223 is a deficient number, since it is larger than the sum of its proper divisors (17312017).

3964399223 is a wasteful number, since it uses less digits than its factorization.

3964399223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17312016.

The product of its digits is 1889568, while the sum is 50.

The square root of 3964399223 is about 62963.4753091028. The cubic root of 3964399223 is about 1582.6776183982.

The spelling of 3964399223 in words is "three billion, nine hundred sixty-four million, three hundred ninety-nine thousand, two hundred twenty-three".