78080543 has 4 divisors (see below), whose sum is σ = 78105768. Its totient is φ = 78055320.

The previous prime is 78080533. The next prime is 78080567. The reversal of 78080543 is 34508087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34508087 = 37 ⋅932651.

It is a cyclic number.

It is not a de Polignac number, because 78080543 - 2⁸ = 78080287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78080503) 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, 7193 + ... + 14418.

It is an arithmetic number, because the mean of its divisors is an integer number (19526442).

Almost surely, 2^78080543 is an apocalyptic number.

78080543 is a deficient number, since it is larger than the sum of its proper divisors (25225).

78080543 is a wasteful number, since it uses less digits than its factorization.

78080543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25224.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 78080543 is about 8836.3195392652. The cubic root of 78080543 is about 427.4128828558.

The spelling of 78080543 in words is "seventy-eight million, eighty thousand, five hundred forty-three".