2001327964 has 6 divisors (see below), whose sum is σ = 3502323944. Its totient is φ = 1000663980.

The previous prime is 2001327953. The next prime is 2001327997. The reversal of 2001327964 is 4697231002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250165992 + ... + 250165999.

Almost surely, 2^2001327964 is an apocalyptic number.

It is an amenable number.

2001327964 is a deficient number, since it is larger than the sum of its proper divisors (1500995980).

2001327964 is a wasteful number, since it uses less digits than its factorization.

2001327964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500331995 (or 500331993 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 2001327964 is about 44736.2041751421. The cubic root of 2001327964 is about 1260.1998431656.

Adding to 2001327964 its reverse (4697231002), we get a palindrome (6698558966).

The spelling of 2001327964 in words is "two billion, one million, three hundred twenty-seven thousand, nine hundred sixty-four".