78673356 has 30 divisors (see below), whose sum is σ = 205668540. Its totient is φ = 26224344.

The previous prime is 78673351. The next prime is 78673379. The reversal of 78673356 is 65337687.

It is not an unprimeable number, because it can be changed into a prime (78673351) 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 9 ways as a sum of consecutive naturals, for example, 121086 + ... + 121733.

It is an arithmetic number, because the mean of its divisors is an integer number (6855618).

Almost surely, 2^78673356 is an apocalyptic number.

It is an amenable number.

78673356 is an abundant number, since it is smaller than the sum of its proper divisors (126995184).

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

78673356 is a wasteful number, since it uses less digits than its factorization.

78673356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242835 (or 242824 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 78673356 is about 8869.8002232294. The cubic root of 78673356 is about 428.4918429362.

The spelling of 78673356 in words is "seventy-eight million, six hundred seventy-three thousand, three hundred fifty-six".