87387243 has 16 divisors (see below), whose sum is σ = 117680640. Its totient is φ = 57679776.

The previous prime is 87387199. The next prime is 87387247. The reversal of 87387243 is 34278378.

It is not a de Polignac number, because 87387243 - 2⁹ = 87386731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87387195 and 87387204.

It is not an unprimeable number, because it can be changed into a prime (87387247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219921 + ... + 220317.

It is an arithmetic number, because the mean of its divisors is an integer number (7355040).

Almost surely, 2^87387243 is an apocalyptic number.

87387243 is a deficient number, since it is larger than the sum of its proper divisors (30293397).

87387243 is a wasteful number, since it uses less digits than its factorization.

87387243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its digits is 225792, while the sum is 42.

The square root of 87387243 is about 9348.1144087992. The cubic root of 87387243 is about 443.7612191040.

The spelling of 87387243 in words is "eighty-seven million, three hundred eighty-seven thousand, two hundred forty-three".