78938067 has 32 divisors (see below), whose sum is σ = 117365248. Its totient is φ = 46884096.

The previous prime is 78938033. The next prime is 78938077. The reversal of 78938067 is 76083987.

It is not a de Polignac number, because 78938067 - 2⁶ = 78938003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78938077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172503 + ... + 172959.

It is an arithmetic number, because the mean of its divisors is an integer number (3667664).

Almost surely, 2^78938067 is an apocalyptic number.

78938067 is a deficient number, since it is larger than the sum of its proper divisors (38427181).

78938067 is a wasteful number, since it uses less digits than its factorization.

78938067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 78938067 is about 8884.7097307678. The cubic root of 78938067 is about 428.9718848566.

The spelling of 78938067 in words is "seventy-eight million, nine hundred thirty-eight thousand, sixty-seven".