969734438921 has 2 divisors, whose sum is σ = 969734438922. Its totient is φ = 969734438920.

The previous prime is 969734438917. The next prime is 969734438923. The reversal of 969734438921 is 129834437969.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968578778896 + 1155660025 = 984164^2 + 33995^2 .

It is a cyclic number.

It is not a de Polignac number, because 969734438921 - 2² = 969734438917 is a prime.

Together with 969734438923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (969734438923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484867219460 + 484867219461.

It is an arithmetic number, because the mean of its divisors is an integer number (484867219461).

Almost surely, 2^969734438921 is an apocalyptic number.

It is an amenable number.

969734438921 is a deficient number, since it is larger than the sum of its proper divisors (1).

969734438921 is an equidigital number, since it uses as much as digits as its factorization.

969734438921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 65.

The spelling of 969734438921 in words is "nine hundred sixty-nine billion, seven hundred thirty-four million, four hundred thirty-eight thousand, nine hundred twenty-one".