87582447 has 12 divisors (see below), whose sum is σ = 128895624. Its totient is φ = 57286320.

The previous prime is 87582431. The next prime is 87582493. The reversal of 87582447 is 74428578.

It is not a de Polignac number, because 87582447 - 2⁴ = 87582431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87582427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91329 + ... + 92282.

It is an arithmetic number, because the mean of its divisors is an integer number (10741302).

Almost surely, 2^87582447 is an apocalyptic number.

87582447 is a deficient number, since it is larger than the sum of its proper divisors (41313177).

87582447 is a wasteful number, since it uses less digits than its factorization.

87582447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183670 (or 183667 counting only the distinct ones).

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

The square root of 87582447 is about 9358.5494068258. The cubic root of 87582447 is about 444.0913952346.

The spelling of 87582447 in words is "eighty-seven million, five hundred eighty-two thousand, four hundred forty-seven".