787115216 has 20 divisors (see below), whose sum is σ = 1577624100. Its totient is φ = 379986432.

The previous prime is 787115213. The next prime is 787115233. The reversal of 787115216 is 612511787.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 582739600 + 204375616 = 24140^2 + 14296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 787115216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787115213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847721 + ... + 848648.

It is an arithmetic number, because the mean of its divisors is an integer number (78881205).

Almost surely, 2^787115216 is an apocalyptic number.

It is an amenable number.

787115216 is an abundant number, since it is smaller than the sum of its proper divisors (790508884).

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

787115216 is a wasteful number, since it uses less digits than its factorization.

787115216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696406 (or 1696400 counting only the distinct ones).

The product of its digits is 23520, while the sum is 38.

The square root of 787115216 is about 28055.5737064848. The cubic root of 787115216 is about 923.3069458009.

The spelling of 787115216 in words is "seven hundred eighty-seven million, one hundred fifteen thousand, two hundred sixteen".