969646939 has 2 divisors, whose sum is σ = 969646940. Its totient is φ = 969646938.

The previous prime is 969646933. The next prime is 969646961. The reversal of 969646939 is 939646969.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-969646939 is a prime.

It is not a weakly prime, because it can be changed into another prime (969646933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484823469 + 484823470.

It is an arithmetic number, because the mean of its divisors is an integer number (484823470).

Almost surely, 2^969646939 is an apocalyptic number.

969646939 is a deficient number, since it is larger than the sum of its proper divisors (1).

969646939 is an equidigital number, since it uses as much as digits as its factorization.

969646939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17006112, while the sum is 61.

The square root of 969646939 is about 31139.1544361757. The cubic root of 969646939 is about 989.7781834776.

The spelling of 969646939 in words is "nine hundred sixty-nine million, six hundred forty-six thousand, nine hundred thirty-nine".