78503852 has 24 divisors (see below), whose sum is σ = 157678080. Its totient is φ = 33500880.

The previous prime is 78503837. The next prime is 78503881. The reversal of 78503852 is 25830587.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827 + ... + 12557.

It is an arithmetic number, because the mean of its divisors is an integer number (6569920).

Almost surely, 2^78503852 is an apocalyptic number.

It is an amenable number.

78503852 is an abundant number, since it is smaller than the sum of its proper divisors (79174228).

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

78503852 is a wasteful number, since it uses less digits than its factorization.

78503852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11981 (or 11979 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 78503852 is about 8860.2399516040. The cubic root of 78503852 is about 428.1838890134.

The spelling of 78503852 in words is "seventy-eight million, five hundred three thousand, eight hundred fifty-two".