3964404005 has 8 divisors (see below), whose sum is σ = 4758472224. Its totient is φ = 3170731600.

The previous prime is 3964403999. The next prime is 3964404007. The reversal of 3964404005 is 5004044693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3964404005 - 2²⁶ = 3897295141 is a prime.

It is a super-2 number, since 2×3964404005² = 31432998229720080050, 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 (3964404007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76451 + ... + 117360.

It is an arithmetic number, because the mean of its divisors is an integer number (594809028).

Almost surely, 2^3964404005 is an apocalyptic number.

It is an amenable number.

3964404005 is a deficient number, since it is larger than the sum of its proper divisors (794068219).

3964404005 is a wasteful number, since it uses less digits than its factorization.

3964404005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197907.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 3964404005 is about 62963.5132834882. The cubic root of 3964404005 is about 1582.6782547587.

Adding to 3964404005 its reverse (5004044693), we get a palindrome (8968448698).

The spelling of 3964404005 in words is "three billion, nine hundred sixty-four million, four hundred four thousand, five".