78752808 has 24 divisors (see below), whose sum is σ = 213289050. Its totient is φ = 26250912.

The previous prime is 78752747. The next prime is 78752837. The reversal of 78752808 is 80825787.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42536484 + 36216324 = 6522^2 + 6018^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 546823 + ... + 546966.

Almost surely, 2^78752808 is an apocalyptic number.

It is an amenable number.

78752808 is an abundant number, since it is smaller than the sum of its proper divisors (134536242).

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

78752808 is a wasteful number, since it uses less digits than its factorization.

78752808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093801 (or 1093794 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 78752808 is about 8874.2778861156. The cubic root of 78752808 is about 428.6360386401.

The spelling of 78752808 in words is "seventy-eight million, seven hundred fifty-two thousand, eight hundred eight".