786671872 has 216 divisors, whose sum is σ = 2008025600. Its totient is φ = 307077120.

The previous prime is 786671867. The next prime is 786671881. The reversal of 786671872 is 278176687.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25376497 + ... + 25376527.

Almost surely, 2^786671872 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 786671872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004012800).

786671872 is an abundant number, since it is smaller than the sum of its proper divisors (1221353728).

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

786671872 is an equidigital number, since it uses as much as digits as its factorization.

786671872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 57 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The square root of 786671872 is about 28047.6714184975. The cubic root of 786671872 is about 923.1335618352.

The spelling of 786671872 in words is "seven hundred eighty-six million, six hundred seventy-one thousand, eight hundred seventy-two".