78938343 has 36 divisors (see below), whose sum is σ = 126355320. Its totient is φ = 47451360.

The previous prime is 78938341. The next prime is 78938347. The reversal of 78938343 is 34383987.

It is a happy number.

It is not a de Polignac number, because 78938343 - 2¹ = 78938341 is a prime.

It is a super-3 number, since 3×78938343³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78938341) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188188 + ... + 188606.

It is an arithmetic number, because the mean of its divisors is an integer number (3509870).

Almost surely, 2^78938343 is an apocalyptic number.

78938343 is a deficient number, since it is larger than the sum of its proper divisors (47416977).

78938343 is a wasteful number, since it uses less digits than its factorization.

78938343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 606 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 78938343 is about 8884.7252630568. The cubic root of 78938343 is about 428.9723848102.

The spelling of 78938343 in words is "seventy-eight million, nine hundred thirty-eight thousand, three hundred forty-three".