78946860 has 24 divisors (see below), whose sum is σ = 221051376. Its totient is φ = 21052480.

The previous prime is 78946859. The next prime is 78946867. The reversal of 78946860 is 6864987.

It is not an unprimeable number, because it can be changed into a prime (78946867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 657831 + ... + 657950.

It is an arithmetic number, because the mean of its divisors is an integer number (9210474).

Almost surely, 2^78946860 is an apocalyptic number.

It is an amenable number.

78946860 is an abundant number, since it is smaller than the sum of its proper divisors (142104516).

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

78946860 is a wasteful number, since it uses less digits than its factorization.

78946860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315793 (or 1315791 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 78946860 is about 8885.2045558895. The cubic root of 78946860 is about 428.9878121520.

The spelling of 78946860 in words is "seventy-eight million, nine hundred forty-six thousand, eight hundred sixty".