87484547 has 4 divisors (see below), whose sum is σ = 87503256. Its totient is φ = 87465840.

The previous prime is 87484517. The next prime is 87484559. The reversal of 87484547 is 74548478.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74548478 = 2 ⋅37274239.

It is a cyclic number.

It is not a de Polignac number, because 87484547 - 2²⁴ = 70707331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87484517) 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 3 ways as a sum of consecutive naturals, for example, 4508 + ... + 13974.

It is an arithmetic number, because the mean of its divisors is an integer number (21875814).

Almost surely, 2^87484547 is an apocalyptic number.

87484547 is a deficient number, since it is larger than the sum of its proper divisors (18709).

87484547 is an equidigital number, since it uses as much as digits as its factorization.

87484547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708.

The product of its digits is 1003520, while the sum is 47.

The square root of 87484547 is about 9353.3174328684. The cubic root of 87484547 is about 443.9258645126.

The spelling of 87484547 in words is "eighty-seven million, four hundred eighty-four thousand, five hundred forty-seven".