78828076 has 24 divisors (see below), whose sum is σ = 142742880. Its totient is φ = 38064000.

The previous prime is 78828053. The next prime is 78828089. The reversal of 78828076 is 67082887.

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, 14185 + ... + 18943.

It is an arithmetic number, because the mean of its divisors is an integer number (5947620).

Almost surely, 2^78828076 is an apocalyptic number.

It is an amenable number.

78828076 is a deficient number, since it is larger than the sum of its proper divisors (63914804).

78828076 is a wasteful number, since it uses less digits than its factorization.

78828076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905 (or 4903 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 78828076 is about 8878.5176690707. The cubic root of 78828076 is about 428.7725514634.

The spelling of 78828076 in words is "seventy-eight million, eight hundred twenty-eight thousand, seventy-six".