78852165 has 64 divisors (see below), whose sum is σ = 152395776. Its totient is φ = 34036992.

The previous prime is 78852161. The next prime is 78852167. The reversal of 78852165 is 56125887.

It is not a de Polignac number, because 78852165 - 2² = 78852161 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78852161) 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 63 ways as a sum of consecutive naturals, for example, 248587 + ... + 248903.

It is an arithmetic number, because the mean of its divisors is an integer number (2381184).

Almost surely, 2^78852165 is an apocalyptic number.

It is an amenable number.

78852165 is a deficient number, since it is larger than the sum of its proper divisors (73543611).

78852165 is a wasteful number, since it uses less digits than its factorization.

78852165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its digits is 134400, while the sum is 42.

The square root of 78852165 is about 8879.8741545137. The cubic root of 78852165 is about 428.8162230864.

The spelling of 78852165 in words is "seventy-eight million, eight hundred fifty-two thousand, one hundred sixty-five".