967646789 has 2 divisors, whose sum is σ = 967646790. Its totient is φ = 967646788.

The previous prime is 967646767. The next prime is 967646791. The reversal of 967646789 is 987646769.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 615784225 + 351862564 = 24815^2 + 18758^2 .

It is an emirp because it is prime and its reverse (987646769) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 967646789 - 2²⁸ = 699211333 is a prime.

It is a Sophie Germain prime.

Together with 967646791, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (967646389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483823394 + 483823395.

It is an arithmetic number, because the mean of its divisors is an integer number (483823395).

Almost surely, 2^967646789 is an apocalyptic number.

It is an amenable number.

967646789 is a deficient number, since it is larger than the sum of its proper divisors (1).

967646789 is an equidigital number, since it uses as much as digits as its factorization.

967646789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 62.

The square root of 967646789 is about 31107.0215385530. The cubic root of 967646789 is about 989.0971563479.

It can be divided in two parts, 9676 and 46789, that added together give a palindrome (56465).

The spelling of 967646789 in words is "nine hundred sixty-seven million, six hundred forty-six thousand, seven hundred eighty-nine".