3964475426 has 4 divisors (see below), whose sum is σ = 5946713142. Its totient is φ = 1982237712.

The previous prime is 3964475341. The next prime is 3964475447. The reversal of 3964475426 is 6245744693.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2336272225 + 1628203201 = 48335^2 + 40351^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 991118855 + ... + 991118858.

Almost surely, 2^3964475426 is an apocalyptic number.

3964475426 is a deficient number, since it is larger than the sum of its proper divisors (1982237716).

3964475426 is a wasteful number, since it uses less digits than its factorization.

3964475426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982237715.

The product of its digits is 4354560, while the sum is 50.

The square root of 3964475426 is about 62964.0804427413. The cubic root of 3964475426 is about 1582.6877589855.

The spelling of 3964475426 in words is "three billion, nine hundred sixty-four million, four hundred seventy-five thousand, four hundred twenty-six".