765297216 has 168 divisors, whose sum is σ = 2328940224. Its totient is φ = 239754240.

The previous prime is 765297191. The next prime is 765297241. The reversal of 765297216 is 612792567.

It is an interprime number because it is at equal distance from previous prime (765297191) and next prime (765297241).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 807655 + ... + 808601.

Almost surely, 2^765297216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 765297216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164470112).

765297216 is an abundant number, since it is smaller than the sum of its proper divisors (1563643008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

765297216 is a wasteful number, since it uses less digits than its factorization.

765297216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1036 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 765297216 is about 27664.0057836894. The cubic root of 765297216 is about 914.6958551980.

The spelling of 765297216 in words is "seven hundred sixty-five million, two hundred ninety-seven thousand, two hundred sixteen".