3964786205 has 8 divisors (see below), whose sum is σ = 4758130104. Its totient is φ = 3171571200.

The previous prime is 3964786201. The next prime is 3964786249. The reversal of 3964786205 is 5026874693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 273373156 + 3691413049 = 16534^2 + 60757^2 .

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

It is not a de Polignac number, because 3964786205 - 2² = 3964786201 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 (3964786201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58865 + ... + 106745.

It is an arithmetic number, because the mean of its divisors is an integer number (594766263).

Almost surely, 2^3964786205 is an apocalyptic number.

It is an amenable number.

3964786205 is a deficient number, since it is larger than the sum of its proper divisors (793343899).

3964786205 is a wasteful number, since it uses less digits than its factorization.

3964786205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64447.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The square root of 3964786205 is about 62966.5483014592. The cubic root of 3964786205 is about 1582.7291140379.

The spelling of 3964786205 in words is "three billion, nine hundred sixty-four million, seven hundred eighty-six thousand, two hundred five".