965997818 has 8 divisors (see below), whose sum is σ = 1450117812. Its totient is φ = 482625216.

The previous prime is 965997811. The next prime is 965997827. The reversal of 965997818 is 818799569.

It can be written as a sum of positive squares in 2 ways, for example, as 965531329 + 466489 = 31073^2 + 683^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×965997818² = 1866303568761522248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (965997811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183605 + ... + 188792.

Almost surely, 2^965997818 is an apocalyptic number.

965997818 is a deficient number, since it is larger than the sum of its proper divisors (484119994).

965997818 is a wasteful number, since it uses less digits than its factorization.

965997818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373696.

The product of its digits is 9797760, while the sum is 62.

The square root of 965997818 is about 31080.5054334707. The cubic root of 965997818 is about 988.5349953459.

The spelling of 965997818 in words is "nine hundred sixty-five million, nine hundred ninety-seven thousand, eight hundred eighteen".