786880872 has 64 divisors (see below), whose sum is σ = 2201817600. Its totient is φ = 260369280.

The previous prime is 786880841. The next prime is 786880873. The reversal of 786880872 is 278088687.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (786880873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16297 + ... + 42887.

It is an arithmetic number, because the mean of its divisors is an integer number (34403400).

Almost surely, 2^786880872 is an apocalyptic number.

786880872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 786880872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100908800).

786880872 is an abundant number, since it is smaller than the sum of its proper divisors (1414936728).

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

786880872 is a wasteful number, since it uses less digits than its factorization.

786880872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26743 (or 26733 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 54.

The square root of 786880872 is about 28051.3969705610. The cubic root of 786880872 is about 923.2153061379.

The spelling of 786880872 in words is "seven hundred eighty-six million, eight hundred eighty thousand, eight hundred seventy-two".