87087547 has 4 divisors (see below), whose sum is σ = 87149920. Its totient is φ = 87025176.

The previous prime is 87087523. The next prime is 87087563. The reversal of 87087547 is 74578078.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87087547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87087497 and 87087506.

It is not an unprimeable number, because it can be changed into a prime (87087347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29043 + ... + 31900.

It is an arithmetic number, because the mean of its divisors is an integer number (21787480).

Almost surely, 2^87087547 is an apocalyptic number.

87087547 is a deficient number, since it is larger than the sum of its proper divisors (62373).

87087547 is a wasteful number, since it uses less digits than its factorization.

87087547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62372.

The product of its (nonzero) digits is 439040, while the sum is 46.

The square root of 87087547 is about 9332.0708848572. The cubic root of 87087547 is about 443.2533425822.

The spelling of 87087547 in words is "eighty-seven million, eighty-seven thousand, five hundred forty-seven".