78613056 has 42 divisors (see below), whose sum is σ = 225331782. Its totient is φ = 26204160.

The previous prime is 78613039. The next prime is 78613061. The reversal of 78613056 is 65031687.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 33454656 = 6720^2 + 5784^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 78613056.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 67665 + ... + 68816.

Almost surely, 2^78613056 is an apocalyptic number.

It is an amenable number.

78613056 is an abundant number, since it is smaller than the sum of its proper divisors (146718726).

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

78613056 is a wasteful number, since it uses less digits than its factorization.

78613056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136499 (or 136486 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 78613056 is about 8866.4003970044. The cubic root of 78613056 is about 428.3823409669.

The spelling of 78613056 in words is "seventy-eight million, six hundred thirteen thousand, fifty-six".