787871616 has 64 divisors (see below), whose sum is σ = 2391761280. Its totient is φ = 225105408.

The previous prime is 787871611. The next prime is 787871627. The reversal of 787871616 is 616178787.

It is a tau number, because it is divible by the number of its divisors (64).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787871611) 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, 143866 + ... + 149241.

It is an arithmetic number, because the mean of its divisors is an integer number (37371270).

Almost surely, 2^787871616 is an apocalyptic number.

It is an amenable number.

787871616 is an abundant number, since it is smaller than the sum of its proper divisors (1603889664).

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

787871616 is a wasteful number, since it uses less digits than its factorization.

787871616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293131 (or 293119 counting only the distinct ones).

The product of its digits is 790272, while the sum is 51.

The square root of 787871616 is about 28069.0508567711. The cubic root of 787871616 is about 923.6026101742.

The spelling of 787871616 in words is "seven hundred eighty-seven million, eight hundred seventy-one thousand, six hundred sixteen".