4042679 has 4 divisors (see below), whose sum is σ = 4173120. Its totient is φ = 3912240.

The previous prime is 4042673. The next prime is 4042693. The reversal of 4042679 is 9762404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65174 + ... + 65235.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^4042679 is an apocalyptic number.

4042679 is a deficient number, since it is larger than the sum of its proper divisors (130441).

4042679 is a wasteful number, since it uses less digits than its factorization.

4042679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130440.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 4042679 is about 2010.6414399390. The cubic root of 4042679 is about 159.3026814789.

The spelling of 4042679 in words is "four million, forty-two thousand, six hundred seventy-nine".