787882172 has 72 divisors (see below), whose sum is σ = 1774700928. Its totient is φ = 302584800.

The previous prime is 787882141. The next prime is 787882189. The reversal of 787882172 is 271288787.

It is a self number, because there is not a number n which added to its sum of digits gives 787882172.

It is a congruent number.

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, 150503 + ... + 155649.

It is an arithmetic number, because the mean of its divisors is an integer number (24648624).

Almost surely, 2^787882172 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 787882172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887350464).

787882172 is an abundant number, since it is smaller than the sum of its proper divisors (986818756).

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

787882172 is a wasteful number, since it uses less digits than its factorization.

787882172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247 (or 5238 counting only the distinct ones).

The product of its digits is 702464, while the sum is 50.

The square root of 787882172 is about 28069.2388924246. The cubic root of 787882172 is about 923.6067350026.

The spelling of 787882172 in words is "seven hundred eighty-seven million, eight hundred eighty-two thousand, one hundred seventy-two".