78938283 has 16 divisors (see below), whose sum is σ = 108259200. Its totient is φ = 51142080.

The previous prime is 78938221. The next prime is 78938311. The reversal of 78938283 is 38283987.

It is not a de Polignac number, because 78938283 - 2⁶ = 78938219 is a prime.

It is a super-3 number, since 3×78938283³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78938383) 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 15 ways as a sum of consecutive naturals, for example, 13248 + ... + 18258.

It is an arithmetic number, because the mean of its divisors is an integer number (6766200).

Almost surely, 2^78938283 is an apocalyptic number.

78938283 is a deficient number, since it is larger than the sum of its proper divisors (29320917).

78938283 is a wasteful number, since it uses less digits than its factorization.

78938283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162.

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

The square root of 78938283 is about 8884.7218864746. The cubic root of 78938283 is about 428.9722761247.

The spelling of 78938283 in words is "seventy-eight million, nine hundred thirty-eight thousand, two hundred eighty-three".