87550647 has 16 divisors (see below), whose sum is σ = 119577600. Its totient is φ = 56957472.

The previous prime is 87550633. The next prime is 87550657. The reversal of 87550647 is 74605578.

It is not a de Polignac number, because 87550647 - 2⁶ = 87550583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87550599 and 87550608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87550607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30258 + ... + 33024.

It is an arithmetic number, because the mean of its divisors is an integer number (7473600).

Almost surely, 2^87550647 is an apocalyptic number.

87550647 is a deficient number, since it is larger than the sum of its proper divisors (32026953).

87550647 is a wasteful number, since it uses less digits than its factorization.

87550647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 87550647 is about 9356.8502713253. The cubic root of 87550647 is about 444.0376408718.

The spelling of 87550647 in words is "eighty-seven million, five hundred fifty thousand, six hundred forty-seven".