78818376 has 128 divisors (see below), whose sum is σ = 245145600. Its totient is φ = 20563200.

The previous prime is 78818339. The next prime is 78818387. The reversal of 78818376 is 67381887.

It is a nude number because it is divisible by every one of its digits.

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 31 ways as a sum of consecutive naturals, for example, 329665 + ... + 329903.

It is an arithmetic number, because the mean of its divisors is an integer number (1915200).

Almost surely, 2^78818376 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 78818376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122572800).

78818376 is an abundant number, since it is smaller than the sum of its proper divisors (166327224).

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

78818376 is a wasteful number, since it uses less digits than its factorization.

78818376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419 (or 415 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 78818376 is about 8877.9713899066. The cubic root of 78818376 is about 428.7549635490.

The spelling of 78818376 in words is "seventy-eight million, eight hundred eighteen thousand, three hundred seventy-six".