87676543 has 4 divisors (see below), whose sum is σ = 88059640. Its totient is φ = 87293448.

The previous prime is 87676499. The next prime is 87676571. The reversal of 87676543 is 34567678.

87676543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34567678 = 2 ⋅17283839.

It is a cyclic number.

It is not a de Polignac number, because 87676543 - 2⁹ = 87676031 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 = 87676493 and 87676502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87676343) 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, 191205 + ... + 191662.

It is an arithmetic number, because the mean of its divisors is an integer number (22014910).

Almost surely, 2^87676543 is an apocalyptic number.

87676543 is a deficient number, since it is larger than the sum of its proper divisors (383097).

87676543 is a wasteful number, since it uses less digits than its factorization.

87676543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383096.

The product of its digits is 846720, while the sum is 46.

The square root of 87676543 is about 9363.5753321047. The cubic root of 87676543 is about 444.2503778820.

The spelling of 87676543 in words is "eighty-seven million, six hundred seventy-six thousand, five hundred forty-three".