787887 has 20 divisors (see below), whose sum is σ = 1202256. Its totient is φ = 514080.

The previous prime is 787883. The next prime is 787903. The reversal of 787887 is 788787.

787887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 787887 - 2² = 787883 is a prime.

787887 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787883) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5683 + ... + 5819.

2⁷⁸⁷⁸⁸⁷ is an apocalyptic number.

787887 is a deficient number, since it is larger than the sum of its proper divisors (414369).

787887 is a wasteful number, since it uses less digits than its factorization.

787887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 211 counting only the distinct ones).

The product of its digits is 175616, while the sum is 45.

The square root of 787887 is about 887.6299904803. The cubic root of 787887 is about 92.3608621564.

Subtracting 787887 from its reverse (788787), we obtain a square (900 = 30²).

The spelling of 787887 in words is "seven hundred eighty-seven thousand, eight hundred eighty-seven".