787983 has 16 divisors (see below), whose sum is σ = 1213440. Its totient is φ = 445536.

The previous prime is 787981. The next prime is 787993. The reversal of 787983 is 389787.

It is not a de Polignac number, because 787983 - 2¹ = 787981 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3178 + ... + 3416.

It is an arithmetic number, because the mean of its divisors is an integer number (75840).

2⁷⁸⁷⁹⁸³ is an apocalyptic number.

787983 is a deficient number, since it is larger than the sum of its proper divisors (425457).

787983 is a wasteful number, since it uses less digits than its factorization.

787983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its digits is 84672, while the sum is 42.

The square root of 787983 is about 887.6840654197. The cubic root of 787983 is about 92.3646132369.

It can be divided in two parts, 787 and 983, that added together give a triangular number (1770 = T₅₉).

The spelling of 787983 in words is "seven hundred eighty-seven thousand, nine hundred eighty-three".