87180547 has 8 divisors (see below), whose sum is σ = 90246656. Its totient is φ = 84151872.

The previous prime is 87180521. The next prime is 87180553. The reversal of 87180547 is 74508178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87180547 - 2²³ = 78791939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87180047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4578 + ... + 13975.

It is an arithmetic number, because the mean of its divisors is an integer number (11280832).

Almost surely, 2^87180547 is an apocalyptic number.

87180547 is a deficient number, since it is larger than the sum of its proper divisors (3066109).

87180547 is a wasteful number, since it uses less digits than its factorization.

87180547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18717.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 87180547 is about 9337.0523721354. The cubic root of 87180547 is about 443.4110685229.

It can be divided in two parts, 871 and 80547, that added together give a palindrome (81418).

The spelling of 87180547 in words is "eighty-seven million, one hundred eighty thousand, five hundred forty-seven".