87148666 has 16 divisors (see below), whose sum is σ = 144618048. Its totient is φ = 39054400.

The previous prime is 87148627. The next prime is 87148673. The reversal of 87148666 is 66684178.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26335 + ... + 29458.

It is an arithmetic number, because the mean of its divisors is an integer number (9038628).

Almost surely, 2^87148666 is an apocalyptic number.

87148666 is a deficient number, since it is larger than the sum of its proper divisors (57469382).

87148666 is a wasteful number, since it uses less digits than its factorization.

87148666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55877.

The product of its digits is 387072, while the sum is 46.

The square root of 87148666 is about 9335.3449855911. The cubic root of 87148666 is about 443.3570116938.

The spelling of 87148666 in words is "eighty-seven million, one hundred forty-eight thousand, six hundred sixty-six".