87287445 has 48 divisors (see below), whose sum is σ = 173571840. Its totient is φ = 39750912.

The previous prime is 87287443. The next prime is 87287561. The reversal of 87287445 is 54478278.

It is not a de Polignac number, because 87287445 - 2¹ = 87287443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87287445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87287443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153121 + ... + 153689.

It is an arithmetic number, because the mean of its divisors is an integer number (3616080).

Almost surely, 2^87287445 is an apocalyptic number.

It is an amenable number.

87287445 is a deficient number, since it is larger than the sum of its proper divisors (86284395).

87287445 is a wasteful number, since it uses less digits than its factorization.

87287445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1071 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The square root of 87287445 is about 9342.7750160217. The cubic root of 87287445 is about 443.5922266592.

The spelling of 87287445 in words is "eighty-seven million, two hundred eighty-seven thousand, four hundred forty-five".