780995072 has 80 divisors (see below), whose sum is σ = 1833445152. Its totient is φ = 327659520.

The previous prime is 780995071. The next prime is 780995123. The reversal of 780995072 is 270599087.

It is not an unprimeable number, because it can be changed into a prime (780995071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67883 + ... + 78549.

Almost surely, 2^780995072 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 780995072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916722576).

780995072 is an abundant number, since it is smaller than the sum of its proper divisors (1052450080).

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

780995072 is a wasteful number, since it uses less digits than its factorization.

780995072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10709 (or 10693 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 47.

The square root of 780995072 is about 27946.2890559731. The cubic root of 780995072 is about 920.9076863985.

The spelling of 780995072 in words is "seven hundred eighty million, nine hundred ninety-five thousand, seventy-two".