78811343 has 8 divisors (see below), whose sum is σ = 84960288. Its totient is φ = 72674784.

The previous prime is 78811333. The next prime is 78811423. The reversal of 78811343 is 34311887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78811343 - 2¹² = 78807247 is a prime.

It is a super-2 number, since 2×78811343² = 12422455570927298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78811333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13421 + ... + 18377.

It is an arithmetic number, because the mean of its divisors is an integer number (10620036).

Almost surely, 2^78811343 is an apocalyptic number.

78811343 is a deficient number, since it is larger than the sum of its proper divisors (6148945).

78811343 is a wasteful number, since it uses less digits than its factorization.

78811343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193.

The product of its digits is 16128, while the sum is 35.

The square root of 78811343 is about 8877.5752883318. The cubic root of 78811343 is about 428.7422105020.

The spelling of 78811343 in words is "seventy-eight million, eight hundred eleven thousand, three hundred forty-three".