87911066 has 4 divisors (see below), whose sum is σ = 131866602. Its totient is φ = 43955532.

The previous prime is 87911059. The next prime is 87911077. The reversal of 87911066 is 66011978.

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

It can be written as a sum of positive squares in only one way, i.e., 49210225 + 38700841 = 7015^2 + 6221^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21977765 + ... + 21977768.

Almost surely, 2^87911066 is an apocalyptic number.

87911066 is a deficient number, since it is larger than the sum of its proper divisors (43955536).

87911066 is a wasteful number, since it uses less digits than its factorization.

87911066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43955535.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 87911066 is about 9376.0901232870. The cubic root of 87911066 is about 444.6461286353.

The spelling of 87911066 in words is "eighty-seven million, nine hundred eleven thousand, sixty-six".