78127328 has 24 divisors (see below), whose sum is σ = 156423960. Its totient is φ = 38400640.

The previous prime is 78127321. The next prime is 78127331. The reversal of 78127328 is 82372187.

It is a super-2 number, since 2×78127328² = 12207758760839168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78127291 and 78127300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78127321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18803 + ... + 22578.

It is an arithmetic number, because the mean of its divisors is an integer number (6517665).

Almost surely, 2^78127328 is an apocalyptic number.

It is an amenable number.

78127328 is an abundant number, since it is smaller than the sum of its proper divisors (78296632).

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

78127328 is a wasteful number, since it uses less digits than its factorization.

78127328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41450 (or 41442 counting only the distinct ones).

The product of its digits is 37632, while the sum is 38.

The square root of 78127328 is about 8838.9664554177. The cubic root of 78127328 is about 427.4982328393.

The spelling of 78127328 in words is "seventy-eight million, one hundred twenty-seven thousand, three hundred twenty-eight".