78047804 has 24 divisors (see below), whose sum is σ = 139536768. Its totient is φ = 38188800.

The previous prime is 78047803. The next prime is 78047807. The reversal of 78047804 is 40874087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78047803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39029 + ... + 40979.

It is an arithmetic number, because the mean of its divisors is an integer number (5814032).

Almost surely, 2^78047804 is an apocalyptic number.

It is an amenable number.

78047804 is a deficient number, since it is larger than the sum of its proper divisors (61488964).

78047804 is a wasteful number, since it uses less digits than its factorization.

78047804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 78047804 is about 8834.4668203576. The cubic root of 78047804 is about 427.3531367439.

It can be divided in two parts, 780 and 47804, that added together give a palindrome (48584).

The spelling of 78047804 in words is "seventy-eight million, forty-seven thousand, eight hundred four".