78543084 has 12 divisors (see below), whose sum is σ = 183267224. Its totient is φ = 26181024.

The previous prime is 78543083. The next prime is 78543139. The reversal of 78543084 is 48034587.

78543084 is nontrivially palindromic in base 8.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78543083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3272617 + ... + 3272640.

Almost surely, 2^78543084 is an apocalyptic number.

It is an amenable number.

78543084 is an abundant number, since it is smaller than the sum of its proper divisors (104724140).

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

78543084 is a wasteful number, since it uses less digits than its factorization.

78543084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6545264 (or 6545262 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 78543084 is about 8862.4536105979. The cubic root of 78543084 is about 428.2552048888.

The spelling of 78543084 in words is "seventy-eight million, five hundred forty-three thousand, eighty-four".