78857300 has 36 divisors (see below), whose sum is σ = 171522876. Its totient is φ = 31468800.

The previous prime is 78857297. The next prime is 78857347. The reversal of 78857300 is 375887.

It can be written as a sum of positive squares in 6 ways, for example, as 38416 + 78818884 = 196^2 + 8878^2 .

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 65504 + ... + 66696.

Almost surely, 2^78857300 is an apocalyptic number.

It is an amenable number.

78857300 is an abundant number, since it is smaller than the sum of its proper divisors (92665576).

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

78857300 is a wasteful number, since it uses less digits than its factorization.

78857300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 78857300 is about 8880.1632867870. The cubic root of 78857300 is about 428.8255313217.

The spelling of 78857300 in words is "seventy-eight million, eight hundred fifty-seven thousand, three hundred".