2006503967 has 4 divisors (see below), whose sum is σ = 2160850440. Its totient is φ = 1852157496.

The previous prime is 2006503957. The next prime is 2006503973. The reversal of 2006503967 is 7693056002.

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

It is a cyclic number.

It is not a de Polignac number, because 2006503967 - 2¹² = 2006499871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2006503967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2006503907) 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, 77173217 + ... + 77173242.

It is an arithmetic number, because the mean of its divisors is an integer number (540212610).

Almost surely, 2^2006503967 is an apocalyptic number.

2006503967 is a deficient number, since it is larger than the sum of its proper divisors (154346473).

2006503967 is a wasteful number, since it uses less digits than its factorization.

2006503967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154346472.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 2006503967 is about 44794.0170893391. The cubic root of 2006503967 is about 1261.2853195895.

Adding to 2006503967 its reverse (7693056002), we get a palindrome (9699559969).

The spelling of 2006503967 in words is "two billion, six million, five hundred three thousand, nine hundred sixty-seven".