965690993 has 2 divisors, whose sum is σ = 965690994. Its totient is φ = 965690992.

The previous prime is 965690989. The next prime is 965691011. The reversal of 965690993 is 399096569.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867125809 + 98565184 = 29447^2 + 9928^2 .

It is a cyclic number.

It is not a de Polignac number, because 965690993 - 2² = 965690989 is a prime.

It is a super-2 number, since 2×965690993² = 1865118187922652098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (965690983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482845496 + 482845497.

It is an arithmetic number, because the mean of its divisors is an integer number (482845497).

Almost surely, 2^965690993 is an apocalyptic number.

It is an amenable number.

965690993 is a deficient number, since it is larger than the sum of its proper divisors (1).

965690993 is an equidigital number, since it uses as much as digits as its factorization.

965690993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3542940, while the sum is 56.

The square root of 965690993 is about 31075.5690696084. The cubic root of 965690993 is about 988.4303231397.

The spelling of 965690993 in words is "nine hundred sixty-five million, six hundred ninety thousand, nine hundred ninety-three".