78545382 has 16 divisors (see below), whose sum is σ = 162158592. Its totient is φ = 25337160.

The previous prime is 78545359. The next prime is 78545387. The reversal of 78545382 is 28354587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78545387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210958 + ... + 211329.

It is an arithmetic number, because the mean of its divisors is an integer number (10134912).

Almost surely, 2^78545382 is an apocalyptic number.

78545382 is an abundant number, since it is smaller than the sum of its proper divisors (83613210).

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

78545382 is a wasteful number, since it uses less digits than its factorization.

78545382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422323.

The product of its digits is 268800, while the sum is 42.

The square root of 78545382 is about 8862.5832577189. The cubic root of 78545382 is about 428.2593814537.

The spelling of 78545382 in words is "seventy-eight million, five hundred forty-five thousand, three hundred eighty-two".