87550470 has 96 divisors (see below), whose sum is σ = 269837568. Its totient is φ = 20007648.

The previous prime is 87550453. The next prime is 87550471. The reversal of 87550470 is 7405578.

87550470 is a `hidden beast` number, since 87 + 5 + 504 + 70 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87550471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14437 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (2810808).

Almost surely, 2^87550470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87550470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134918784).

87550470 is an abundant number, since it is smaller than the sum of its proper divisors (182287098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87550470 is a wasteful number, since it uses less digits than its factorization.

87550470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 87550470 is about 9356.8408130095. The cubic root of 87550470 is about 444.0373416366.

The spelling of 87550470 in words is "eighty-seven million, five hundred fifty thousand, four hundred seventy".