965966401 has 4 divisors (see below), whose sum is σ = 1022787972. Its totient is φ = 909144832.

The previous prime is 965966383. The next prime is 965966413. The reversal of 965966401 is 104669569.

965966401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 31080²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 752075776 + 213890625 = 27424^2 + 14625^2 .

It is a cyclic number.

It is not a de Polignac number, because 965966401 - 2⁵ = 965966369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (965966501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28410760 + ... + 28410793.

It is an arithmetic number, because the mean of its divisors is an integer number (255696993).

Almost surely, 2^965966401 is an apocalyptic number.

It is an amenable number.

965966401 is a deficient number, since it is larger than the sum of its proper divisors (56821571).

965966401 is a wasteful number, since it uses less digits than its factorization.

965966401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56821570.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 965966401 is about 31080.0000160875. Note that the first 4 decimals coincide. The cubic root of 965966401 is about 988.5242785720.

The spelling of 965966401 in words is "nine hundred sixty-five million, nine hundred sixty-six thousand, four hundred one".