84527543 has 4 divisors (see below), whose sum is σ = 84994728. Its totient is φ = 84060360.

The previous prime is 84527537. The next prime is 84527549. The reversal of 84527543 is 34572548.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (84527537) and next prime (84527549).

It is a cyclic number.

It is not a de Polignac number, because 84527543 - 2¹⁴ = 84511159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84527497 and 84527506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84527549) 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, 233321 + ... + 233682.

It is an arithmetic number, because the mean of its divisors is an integer number (21248682).

Almost surely, 2^84527543 is an apocalyptic number.

84527543 is a deficient number, since it is larger than the sum of its proper divisors (467185).

84527543 is a wasteful number, since it uses less digits than its factorization.

84527543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467184.

The product of its digits is 134400, while the sum is 38.

The square root of 84527543 is about 9193.8861750622. The cubic root of 84527543 is about 438.8668206770.

The spelling of 84527543 in words is "eighty-four million, five hundred twenty-seven thousand, five hundred forty-three".