87545671 has 4 divisors (see below), whose sum is σ = 87798312. Its totient is φ = 87293032.

The previous prime is 87545629. The next prime is 87545677. The reversal of 87545671 is 17654578.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87545671 - 2⁷ = 87545543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87545677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125800 + ... + 126493.

It is an arithmetic number, because the mean of its divisors is an integer number (21949578).

Almost surely, 2^87545671 is an apocalyptic number.

87545671 is a deficient number, since it is larger than the sum of its proper divisors (252641).

87545671 is a wasteful number, since it uses less digits than its factorization.

87545671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252640.

The product of its digits is 235200, while the sum is 43.

The square root of 87545671 is about 9356.5843661028. The cubic root of 87545671 is about 444.0292283196.

The spelling of 87545671 in words is "eighty-seven million, five hundred forty-five thousand, six hundred seventy-one".