78886413 has 24 divisors (see below), whose sum is σ = 121032960. Its totient is φ = 50728680.

The previous prime is 78886397. The next prime is 78886417. The reversal of 78886413 is 31468887.

It is not a de Polignac number, because 78886413 - 2⁴ = 78886397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78886417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256806 + ... + 257112.

It is an arithmetic number, because the mean of its divisors is an integer number (5043040).

Almost surely, 2^78886413 is an apocalyptic number.

It is an amenable number.

78886413 is a deficient number, since it is larger than the sum of its proper divisors (42146547).

78886413 is an equidigital number, since it uses as much as digits as its factorization.

78886413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 341 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 78886413 is about 8881.8023508745. The cubic root of 78886413 is about 428.8782969361.

The spelling of 78886413 in words is "seventy-eight million, eight hundred eighty-six thousand, four hundred thirteen".