78578204 has 6 divisors (see below), whose sum is σ = 137511864. Its totient is φ = 39289100.

The previous prime is 78578179. The next prime is 78578207. The reversal of 78578204 is 40287587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78578207) by changing a digit.

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 as a sum of consecutive naturals, namely, 9822272 + ... + 9822279.

It is an arithmetic number, because the mean of its divisors is an integer number (22918644).

Almost surely, 2^78578204 is an apocalyptic number.

It is an amenable number.

78578204 is a deficient number, since it is larger than the sum of its proper divisors (58933660).

78578204 is a wasteful number, since it uses less digits than its factorization.

78578204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19644555 (or 19644553 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 78578204 is about 8864.4347817557. The cubic root of 78578204 is about 428.3190258342.

It can be divided in two parts, 7857 and 8204, that added together give a palindrome (16061).

The spelling of 78578204 in words is "seventy-eight million, five hundred seventy-eight thousand, two hundred four".