8656042 has 4 divisors (see below), whose sum is σ = 12984066. Its totient is φ = 4328020.

The previous prime is 8656033. The next prime is 8656057. The reversal of 8656042 is 2406568.

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., 8649481 + 6561 = 2941^2 + 81^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8655995 and 8656013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2164009 + ... + 2164012.

Almost surely, 2^8656042 is an apocalyptic number.

8656042 is a deficient number, since it is larger than the sum of its proper divisors (4328024).

8656042 is a wasteful number, since it uses less digits than its factorization.

8656042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328023.

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

The square root of 8656042 is about 2942.1152254798. The cubic root of 8656042 is about 205.3240324632.

The spelling of 8656042 in words is "eight million, six hundred fifty-six thousand, forty-two".