78843371 has 4 divisors (see below), whose sum is σ = 78916992. Its totient is φ = 78769752.

The previous prime is 78843361. The next prime is 78843397. The reversal of 78843371 is 17334887.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17334887 = 163 ⋅106349.

It is a cyclic number.

It is not a de Polignac number, because 78843371 - 2¹⁴ = 78826987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78843311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35180 + ... + 37353.

It is an arithmetic number, because the mean of its divisors is an integer number (19729248).

Almost surely, 2^78843371 is an apocalyptic number.

78843371 is a deficient number, since it is larger than the sum of its proper divisors (73621).

78843371 is a wasteful number, since it uses less digits than its factorization.

78843371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73620.

The product of its digits is 112896, while the sum is 41.

The square root of 78843371 is about 8879.3789760321. The cubic root of 78843371 is about 428.8002812284.

The spelling of 78843371 in words is "seventy-eight million, eight hundred forty-three thousand, three hundred seventy-one".