965378273 has 2 divisors, whose sum is σ = 965378274. Its totient is φ = 965378272.

The previous prime is 965378243. The next prime is 965378291. The reversal of 965378273 is 372873569.

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., 796819984 + 168558289 = 28228^2 + 12983^2 .

It is a cyclic number.

It is not a de Polignac number, because 965378273 - 2⁸ = 965378017 is a prime.

It is a super-3 number, since 3×965378273³ (a number of 28 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (965378203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482689136 + 482689137.

It is an arithmetic number, because the mean of its divisors is an integer number (482689137).

Almost surely, 2^965378273 is an apocalyptic number.

It is an amenable number.

965378273 is a deficient number, since it is larger than the sum of its proper divisors (1).

965378273 is an equidigital number, since it uses as much as digits as its factorization.

965378273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 50.

The square root of 965378273 is about 31070.5370568325. The cubic root of 965378273 is about 988.3236170593.

The spelling of 965378273 in words is "nine hundred sixty-five million, three hundred seventy-eight thousand, two hundred seventy-three".