78508368 has 120 divisors (see below), whose sum is σ = 232643840. Its totient is φ = 24675840.

The previous prime is 78508343. The next prime is 78508387. The reversal of 78508368 is 86380587.

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 23 ways as a sum of consecutive naturals, for example, 191748 + ... + 192156.

Almost surely, 2^78508368 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 78508368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116321920).

78508368 is an abundant number, since it is smaller than the sum of its proper divisors (154135472).

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

78508368 is a wasteful number, since it uses less digits than its factorization.

78508368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 78508368 is about 8860.4947943103. The cubic root of 78508368 is about 428.1920994019.

The spelling of 78508368 in words is "seventy-eight million, five hundred eight thousand, three hundred sixty-eight".