78283356 has 12 divisors (see below), whose sum is σ = 182661192. Its totient is φ = 26094448.

The previous prime is 78283333. The next prime is 78283367. The reversal of 78283356 is 65338287.

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

It is a super-2 number, since 2×78283356² = 12256567653245472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 3261795 + ... + 3261818.

It is an arithmetic number, because the mean of its divisors is an integer number (15221766).

Almost surely, 2^78283356 is an apocalyptic number.

It is an amenable number.

78283356 is an abundant number, since it is smaller than the sum of its proper divisors (104377836).

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

78283356 is a wasteful number, since it uses less digits than its factorization.

78283356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6523620 (or 6523618 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 78283356 is about 8847.7881981883. The cubic root of 78283356 is about 427.7826290162.

The spelling of 78283356 in words is "seventy-eight million, two hundred eighty-three thousand, three hundred fifty-six".