87377666 has 4 divisors (see below), whose sum is σ = 131066502. Its totient is φ = 43688832.

The previous prime is 87377657. The next prime is 87377701. The reversal of 87377666 is 66677378.

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., 71893441 + 15484225 = 8479^2 + 3935^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21844415 + ... + 21844418.

Almost surely, 2^87377666 is an apocalyptic number.

87377666 is a deficient number, since it is larger than the sum of its proper divisors (43688836).

87377666 is a wasteful number, since it uses less digits than its factorization.

87377666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43688835.

The product of its digits is 1778112, while the sum is 50.

The square root of 87377666 is about 9347.6021524239. The cubic root of 87377666 is about 443.7450075217.

The spelling of 87377666 in words is "eighty-seven million, three hundred seventy-seven thousand, six hundred sixty-six".