787884 has 12 divisors (see below), whose sum is σ = 1838424. Its totient is φ = 262624.

The previous prime is 787883. The next prime is 787903. The reversal of 787884 is 488787.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×787884² = 1241522394912, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 32817 + ... + 32840.

It is an arithmetic number, because the mean of its divisors is an integer number (153202).

2⁷⁸⁷⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

787884 is an abundant number, since it is smaller than the sum of its proper divisors (1050540).

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

787884 is a wasteful number, since it uses less digits than its factorization.

787884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65664 (or 65662 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 787884 is about 887.6283005853. The cubic root of 787884 is about 92.3607449302.

The spelling of 787884 in words is "seven hundred eighty-seven thousand, eight hundred eighty-four".