966193897 has 2 divisors, whose sum is σ = 966193898. Its totient is φ = 966193896.

The previous prime is 966193873. The next prime is 966193933. The reversal of 966193897 is 798391669.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960318121 + 5875776 = 30989^2 + 2424^2 .

It is a cyclic number.

It is not a de Polignac number, because 966193897 - 2⁷ = 966193769 is a prime.

It is not a weakly prime, because it can be changed into another prime (966193847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483096948 + 483096949.

It is an arithmetic number, because the mean of its divisors is an integer number (483096949).

Almost surely, 2^966193897 is an apocalyptic number.

It is an amenable number.

966193897 is a deficient number, since it is larger than the sum of its proper divisors (1).

966193897 is an equidigital number, since it uses as much as digits as its factorization.

966193897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 58.

The square root of 966193897 is about 31083.6596461871. The cubic root of 966193897 is about 988.6018753590.

The spelling of 966193897 in words is "nine hundred sixty-six million, one hundred ninety-three thousand, eight hundred ninety-seven".