87418663 has 4 divisors (see below), whose sum is σ = 87494488. Its totient is φ = 87342840.

The previous prime is 87418657. The next prime is 87418687. The reversal of 87418663 is 36681478.

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

It is a cyclic number.

It is not a de Polignac number, because 87418663 - 2¹⁷ = 87287591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87418603) 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, 36156 + ... + 38497.

It is an arithmetic number, because the mean of its divisors is an integer number (21873622).

Almost surely, 2^87418663 is an apocalyptic number.

87418663 is a deficient number, since it is larger than the sum of its proper divisors (75825).

87418663 is a wasteful number, since it uses less digits than its factorization.

87418663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75824.

The product of its digits is 193536, while the sum is 43.

The square root of 87418663 is about 9349.7948105827. The cubic root of 87418663 is about 443.8143973724.

The spelling of 87418663 in words is "eighty-seven million, four hundred eighteen thousand, six hundred sixty-three".