965861873 has 2 divisors, whose sum is σ = 965861874. Its totient is φ = 965861872.

The previous prime is 965861863. The next prime is 965861881. The reversal of 965861873 is 378168569.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 952524769 + 13337104 = 30863^2 + 3652^2 .

It is a cyclic number.

It is not a de Polignac number, because 965861873 - 2²² = 961667569 is a prime.

It is not a weakly prime, because it can be changed into another prime (965861863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482930936 + 482930937.

It is an arithmetic number, because the mean of its divisors is an integer number (482930937).

Almost surely, 2^965861873 is an apocalyptic number.

It is an amenable number.

965861873 is a deficient number, since it is larger than the sum of its proper divisors (1).

965861873 is an equidigital number, since it uses as much as digits as its factorization.

965861873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 965861873 is about 31078.3183747126. The cubic root of 965861873 is about 988.4886209504.

The spelling of 965861873 in words is "nine hundred sixty-five million, eight hundred sixty-one thousand, eight hundred seventy-three".