87654543 has 8 divisors (see below), whose sum is σ = 123024000. Its totient is φ = 55360728.

The previous prime is 87654521. The next prime is 87654547. The reversal of 87654543 is 34545678.

87654543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87654543 - 2⁹ = 87654031 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 87654495 and 87654504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87654547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768843 + ... + 768956.

It is an arithmetic number, because the mean of its divisors is an integer number (15378000).

Almost surely, 2^87654543 is an apocalyptic number.

87654543 is a deficient number, since it is larger than the sum of its proper divisors (35369457).

87654543 is a wasteful number, since it uses less digits than its factorization.

87654543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537821.

The product of its digits is 403200, while the sum is 42.

The square root of 87654543 is about 9362.4004934632. The cubic root of 87654543 is about 444.2132173312.

The spelling of 87654543 in words is "eighty-seven million, six hundred fifty-four thousand, five hundred forty-three".