78230543 has 16 divisors (see below), whose sum is σ = 85098720. Its totient is φ = 71663616.

The previous prime is 78230507. The next prime is 78230561. The reversal of 78230543 is 34503287.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 78230543 - 2¹⁴ = 78214159 is a prime.

It is a super-2 number, since 2×78230543² = 12240035716149698, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78230563) 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 15 ways as a sum of consecutive naturals, for example, 180455 + ... + 180887.

It is an arithmetic number, because the mean of its divisors is an integer number (5318670).

Almost surely, 2^78230543 is an apocalyptic number.

78230543 is a deficient number, since it is larger than the sum of its proper divisors (6868177).

78230543 is a wasteful number, since it uses less digits than its factorization.

78230543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 78230543 is about 8844.8031634401. The cubic root of 78230543 is about 427.6864077688.

The spelling of 78230543 in words is "seventy-eight million, two hundred thirty thousand, five hundred forty-three".