816968965 has 8 divisors (see below), whose sum is σ = 981048960. Its totient is φ = 653117712.

The previous prime is 816968927. The next prime is 816969019. The reversal of 816968965 is 569869618.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816968965 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49225 + ... + 63694.

It is an arithmetic number, because the mean of its divisors is an integer number (122631120).

Almost surely, 2^816968965 is an apocalyptic number.

It is an amenable number.

816968965 is a deficient number, since it is larger than the sum of its proper divisors (164079995).

816968965 is a wasteful number, since it uses less digits than its factorization.

816968965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114371.

The product of its digits is 5598720, while the sum is 58.

The square root of 816968965 is about 28582.6689621526. The cubic root of 816968965 is about 934.8354786929.

The spelling of 816968965 in words is "eight hundred sixteen million, nine hundred sixty-eight thousand, nine hundred sixty-five".