789887 has 8 divisors (see below), whose sum is σ = 950400. Its totient is φ = 641304.

The previous prime is 789883. The next prime is 789941. The reversal of 789887 is 788987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 789887 - 2² = 789883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789883) 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, 2837 + ... + 3102.

It is an arithmetic number, because the mean of its divisors is an integer number (118800).

2⁷⁸⁹⁸⁸⁷ is an apocalyptic number.

789887 is a deficient number, since it is larger than the sum of its proper divisors (160513).

789887 is a wasteful number, since it uses less digits than its factorization.

789887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5965.

The product of its digits is 225792, while the sum is 47.

The square root of 789887 is about 888.7558719919. The cubic root of 789887 is about 92.4389468069.

Subtracting from 789887 its reverse (788987), we obtain a square (900 = 30²).

The spelling of 789887 in words is "seven hundred eighty-nine thousand, eight hundred eighty-seven".