87877563 has 8 divisors (see below), whose sum is σ = 117765648. Its totient is φ = 58287264.

The previous prime is 87877561. The next prime is 87877577. The reversal of 87877563 is 36577878.

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

It is not a de Polignac number, because 87877563 - 2¹ = 87877561 is a prime.

It is a Smith number, since the sum of its digits (51) 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 (87877561) 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, 73756 + ... + 74937.

It is an arithmetic number, because the mean of its divisors is an integer number (14720706).

Almost surely, 2^87877563 is an apocalyptic number.

87877563 is a deficient number, since it is larger than the sum of its proper divisors (29888085).

87877563 is a wasteful number, since it uses less digits than its factorization.

87877563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148893.

The product of its digits is 1975680, while the sum is 51.

The square root of 87877563 is about 9374.3033341150. The cubic root of 87877563 is about 444.5896364220.

The spelling of 87877563 in words is "eighty-seven million, eight hundred seventy-seven thousand, five hundred sixty-three".