78784082 has 48 divisors (see below), whose sum is σ = 135203328. Its totient is φ = 34369920.

The previous prime is 78784081. The next prime is 78784163. The reversal of 78784082 is 28048787.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (78784081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 764843 + ... + 764945.

It is an arithmetic number, because the mean of its divisors is an integer number (2816736).

Almost surely, 2^78784082 is an apocalyptic number.

78784082 is a deficient number, since it is larger than the sum of its proper divisors (56419246).

78784082 is a wasteful number, since it uses less digits than its factorization.

78784082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 44.

The square root of 78784082 is about 8876.0397700776. The cubic root of 78784082 is about 428.6927705405.

The spelling of 78784082 in words is "seventy-eight million, seven hundred eighty-four thousand, eighty-two".