78081343 has 16 divisors (see below), whose sum is σ = 86188032. Its totient is φ = 70488000.

The previous prime is 78081307. The next prime is 78081347. The reversal of 78081343 is 34318087.

It is a cyclic number.

It is not a de Polignac number, because 78081343 - 2⁹ = 78080831 is a prime.

It is a super-2 number, since 2×78081343² = 12193392249367298, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78081299 and 78081308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78081347) 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 15 ways as a sum of consecutive naturals, for example, 27898 + ... + 30568.

It is an arithmetic number, because the mean of its divisors is an integer number (5386752).

Almost surely, 2^78081343 is an apocalyptic number.

78081343 is a deficient number, since it is larger than the sum of its proper divisors (8106689).

78081343 is a wasteful number, since it uses less digits than its factorization.

78081343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78081343 is about 8836.3648068649. The cubic root of 78081343 is about 427.4143425841.

The spelling of 78081343 in words is "seventy-eight million, eighty-one thousand, three hundred forty-three".