787798 has 8 divisors (see below), whose sum is σ = 1289160. Its totient is φ = 358080.

The previous prime is 787793. The next prime is 787807. The reversal of 787798 is 897787.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787793) 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, 17883 + ... + 17926.

It is an arithmetic number, because the mean of its divisors is an integer number (161145).

2⁷⁸⁷⁷⁹⁸ is an apocalyptic number.

787798 is a deficient number, since it is larger than the sum of its proper divisors (501362).

787798 is a wasteful number, since it uses less digits than its factorization.

787798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35822.

The product of its digits is 197568, while the sum is 46.

The square root of 787798 is about 887.5798555623. The cubic root of 787798 is about 92.3573843200.

It can be divided in two parts, 78779 and 8, that added together give a palindrome (78787).

The spelling of 787798 in words is "seven hundred eighty-seven thousand, seven hundred ninety-eight".