78935380 has 24 divisors (see below), whose sum is σ = 168241248. Its totient is φ = 31102368.

The previous prime is 78935377. The next prime is 78935387. The reversal of 78935380 is 8353987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78935387) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28114 + ... + 30793.

It is an arithmetic number, because the mean of its divisors is an integer number (7010052).

Almost surely, 2^78935380 is an apocalyptic number.

It is an amenable number.

78935380 is an abundant number, since it is smaller than the sum of its proper divisors (89305868).

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

78935380 is a wasteful number, since it uses less digits than its factorization.

78935380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58983 (or 58981 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 78935380 is about 8884.5585146365. The cubic root of 78935380 is about 428.9670174943.

The spelling of 78935380 in words is "seventy-eight million, nine hundred thirty-five thousand, three hundred eighty".