965782819 has 2 divisors, whose sum is σ = 965782820. Its totient is φ = 965782818.

The previous prime is 965782799. The next prime is 965782861. The reversal of 965782819 is 918287569.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 965782819 - 2⁷ = 965782691 is a prime.

It is a super-2 number, since 2×965782819² = 1865472906951173522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 965782819.

It is not a weakly prime, because it can be changed into another prime (965782889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482891409 + 482891410.

It is an arithmetic number, because the mean of its divisors is an integer number (482891410).

Almost surely, 2^965782819 is an apocalyptic number.

965782819 is a deficient number, since it is larger than the sum of its proper divisors (1).

965782819 is an equidigital number, since it uses as much as digits as its factorization.

965782819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The square root of 965782819 is about 31077.0464973749. The cubic root of 965782819 is about 988.4616515622.

The spelling of 965782819 in words is "nine hundred sixty-five million, seven hundred eighty-two thousand, eight hundred nineteen".