87355563 has 8 divisors (see below), whose sum is σ = 118952448. Its totient is φ = 56997864.

The previous prime is 87355561. The next prime is 87355589. The reversal of 87355563 is 36555378.

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

It is not a de Polignac number, because 87355563 - 2¹ = 87355561 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (87355561) 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, 309631 + ... + 309912.

It is an arithmetic number, because the mean of its divisors is an integer number (14869056).

Almost surely, 2^87355563 is an apocalyptic number.

87355563 is a deficient number, since it is larger than the sum of its proper divisors (31596885).

87355563 is a wasteful number, since it uses less digits than its factorization.

87355563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619593.

The product of its digits is 378000, while the sum is 42.

The square root of 87355563 is about 9346.4197958363. The cubic root of 87355563 is about 443.7075878793.

The spelling of 87355563 in words is "eighty-seven million, three hundred fifty-five thousand, five hundred sixty-three".