78082764 has 12 divisors (see below), whose sum is σ = 182193144. Its totient is φ = 26027584.

The previous prime is 78082759. The next prime is 78082777. The reversal of 78082764 is 46728087.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3253437 + ... + 3253460.

It is an arithmetic number, because the mean of its divisors is an integer number (15182762).

Almost surely, 2^78082764 is an apocalyptic number.

It is an amenable number.

78082764 is an abundant number, since it is smaller than the sum of its proper divisors (104110380).

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

78082764 is a wasteful number, since it uses less digits than its factorization.

78082764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6506904 (or 6506902 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 78082764 is about 8836.4452128670. The cubic root of 78082764 is about 427.4169354020.

The spelling of 78082764 in words is "seventy-eight million, eighty-two thousand, seven hundred sixty-four".