780671076 has 72 divisors (see below), whose sum is σ = 1945446720. Its totient is φ = 243598848.

The previous prime is 780671071. The next prime is 780671131. The reversal of 780671076 is 670176087.

It is a super-3 number, since 3×780671076³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (780671071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 793681 + ... + 794663.

Almost surely, 2^780671076 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 780671076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972723360).

780671076 is an abundant number, since it is smaller than the sum of its proper divisors (1164775644).

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

780671076 is a wasteful number, since it uses less digits than its factorization.

780671076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 780671076 is about 27940.4916921660. The cubic root of 780671076 is about 920.7803225236.

The spelling of 780671076 in words is "seven hundred eighty million, six hundred seventy-one thousand, seventy-six".