8665042 has 4 divisors (see below), whose sum is σ = 12997566. Its totient is φ = 4332520.

The previous prime is 8665039. The next prime is 8665073. The reversal of 8665042 is 2405668.

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., 5013121 + 3651921 = 2239^2 + 1911^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8664995 and 8665013.

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, 2166259 + ... + 2166262.

Almost surely, 2^8665042 is an apocalyptic number.

8665042 is a deficient number, since it is larger than the sum of its proper divisors (4332524).

8665042 is a wasteful number, since it uses less digits than its factorization.

8665042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332523.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 8665042 is about 2943.6443399297. The cubic root of 8665042 is about 205.3951687560.

The spelling of 8665042 in words is "eight million, six hundred sixty-five thousand, forty-two".