966519913 has 4 divisors (see below), whose sum is σ = 966749140. Its totient is φ = 966290688.

The previous prime is 966519907. The next prime is 966519941. The reversal of 966519913 is 319915669.

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

It can be written as a sum of positive squares in 2 ways, for example, as 510398464 + 456121449 = 22592^2 + 21357^2 .

It is a cyclic number.

It is not a de Polignac number, because 966519913 - 2⁵ = 966519881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (966510913) 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, 108168 + ... + 116761.

It is an arithmetic number, because the mean of its divisors is an integer number (241687285).

Almost surely, 2^966519913 is an apocalyptic number.

It is an amenable number.

966519913 is a deficient number, since it is larger than the sum of its proper divisors (229227).

966519913 is a wasteful number, since it uses less digits than its factorization.

966519913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229226.

The product of its digits is 393660, while the sum is 49.

The square root of 966519913 is about 31088.9033740336. The cubic root of 966519913 is about 988.7130551771.

The spelling of 966519913 in words is "nine hundred sixty-six million, five hundred nineteen thousand, nine hundred thirteen".