87034543 has 4 divisors (see below), whose sum is σ = 92154240. Its totient is φ = 81914848.

The previous prime is 87034523. The next prime is 87034567. The reversal of 87034543 is 34543078.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34543078 = 2 ⋅17271539.

It is a cyclic number.

It is not a de Polignac number, because 87034543 - 2¹⁷ = 86903471 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87034499 and 87034508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87034523) 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, 2559823 + ... + 2559856.

It is an arithmetic number, because the mean of its divisors is an integer number (23038560).

Almost surely, 2^87034543 is an apocalyptic number.

87034543 is a deficient number, since it is larger than the sum of its proper divisors (5119697).

87034543 is a wasteful number, since it uses less digits than its factorization.

87034543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5119696.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 87034543 is about 9329.2305684874. The cubic root of 87034543 is about 443.1633987306.

The spelling of 87034543 in words is "eighty-seven million, thirty-four thousand, five hundred forty-three".