78667332 has 12 divisors (see below), whose sum is σ = 183557136. Its totient is φ = 26222440.

The previous prime is 78667327. The next prime is 78667333. The reversal of 78667332 is 23376687.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (78667333) 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 3 ways as a sum of consecutive naturals, for example, 3277794 + ... + 3277817.

It is an arithmetic number, because the mean of its divisors is an integer number (15296428).

Almost surely, 2^78667332 is an apocalyptic number.

It is an amenable number.

78667332 is an abundant number, since it is smaller than the sum of its proper divisors (104889804).

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

78667332 is a wasteful number, since it uses less digits than its factorization.

78667332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6555618 (or 6555616 counting only the distinct ones).

The product of its digits is 254016, while the sum is 42.

The square root of 78667332 is about 8869.4606374909. The cubic root of 78667332 is about 428.4809061511.

The spelling of 78667332 in words is "seventy-eight million, six hundred sixty-seven thousand, three hundred thirty-two".