789678965 has 8 divisors (see below), whose sum is σ = 978183168. Its totient is φ = 611364240.

The previous prime is 789678943. The next prime is 789678971. The reversal of 789678965 is 569876987.

789678965 = 417² + 418² + ... + 1346².

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

It is not a de Polignac number, because 789678965 - 2²⁰ = 788630389 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

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, 2547197 + ... + 2547506.

It is an arithmetic number, because the mean of its divisors is an integer number (122272896).

Almost surely, 2^789678965 is an apocalyptic number.

It is an amenable number.

789678965 is a deficient number, since it is larger than the sum of its proper divisors (188504203).

789678965 is a wasteful number, since it uses less digits than its factorization.

789678965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094739.

The product of its digits is 45722880, while the sum is 65.

The square root of 789678965 is about 28101.2271084378. The cubic root of 789678965 is about 924.3083078316.

The spelling of 789678965 in words is "seven hundred eighty-nine million, six hundred seventy-eight thousand, nine hundred sixty-five".