78613386 has 16 divisors (see below), whose sum is σ = 157342944. Its totient is φ = 26185104.

The previous prime is 78613373. The next prime is 78613463. The reversal of 78613386 is 68331687.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5736 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (9833934).

Almost surely, 2^78613386 is an apocalyptic number.

78613386 is an abundant number, since it is smaller than the sum of its proper divisors (78729558).

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

78613386 is a wasteful number, since it uses less digits than its factorization.

78613386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9685.

The product of its digits is 145152, while the sum is 42.

The square root of 78613386 is about 8866.4190065663. The cubic root of 78613386 is about 428.3829403838.

The spelling of 78613386 in words is "seventy-eight million, six hundred thirteen thousand, three hundred eighty-six".