787231216 has 40 divisors (see below), whose sum is σ = 1581461280. Its totient is φ = 379174656.

The previous prime is 787231213. The next prime is 787231241. The reversal of 787231216 is 612132787.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787231213) 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, 231706 + ... + 235078.

It is an arithmetic number, because the mean of its divisors is an integer number (39536532).

Almost surely, 2^787231216 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 787231216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790730640).

787231216 is an abundant number, since it is smaller than the sum of its proper divisors (794230064).

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

787231216 is a wasteful number, since it uses less digits than its factorization.

787231216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3913 (or 3907 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

The square root of 787231216 is about 28057.6409557183. The cubic root of 787231216 is about 923.3523005946.

The spelling of 787231216 in words is "seven hundred eighty-seven million, two hundred thirty-one thousand, two hundred sixteen".