78604344 has 320 divisors, whose sum is σ = 286218240. Its totient is φ = 19595520.

The previous prime is 78604321. The next prime is 78604373. The reversal of 78604344 is 44340687.

78604344 is a `hidden beast` number, since 7 + 8 + 604 + 3 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 78604299 and 78604308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1827987 + ... + 1828029.

It is an arithmetic number, because the mean of its divisors is an integer number (894432).

Almost surely, 2^78604344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78604344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143109120).

78604344 is an abundant number, since it is smaller than the sum of its proper divisors (207613896).

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

78604344 is a wasteful number, since it uses less digits than its factorization.

78604344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 78604344 is about 8865.9090904430. The cubic root of 78604344 is about 428.3665157550.

The spelling of 78604344 in words is "seventy-eight million, six hundred four thousand, three hundred forty-four".