87766863 has 8 divisors (see below), whose sum is σ = 118670976. Its totient is φ = 57687000.

The previous prime is 87766853. The next prime is 87766969. The reversal of 87766863 is 36866778.

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

It is not a de Polignac number, because 87766863 - 2⁵ = 87766831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87766823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205813 + ... + 206238.

It is an arithmetic number, because the mean of its divisors is an integer number (14833872).

Almost surely, 2^87766863 is an apocalyptic number.

87766863 is a deficient number, since it is larger than the sum of its proper divisors (30904113).

87766863 is a wasteful number, since it uses less digits than its factorization.

87766863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412125.

The product of its digits is 2032128, while the sum is 51.

The square root of 87766863 is about 9368.3970347120. The cubic root of 87766863 is about 444.4028737206.

The spelling of 87766863 in words is "eighty-seven million, seven hundred sixty-six thousand, eight hundred sixty-three".