42807679 has 8 divisors (see below), whose sum is σ = 43347920. Its totient is φ = 42270336.

The previous prime is 42807659. The next prime is 42807697. The reversal of 42807679 is 97670824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42807679 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 (42807619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46744 + ... + 47650.

It is an arithmetic number, because the mean of its divisors is an integer number (5418490).

Almost surely, 2^42807679 is an apocalyptic number.

42807679 is a deficient number, since it is larger than the sum of its proper divisors (540241).

42807679 is a wasteful number, since it uses less digits than its factorization.

42807679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 42807679 is about 6542.7577518964. The cubic root of 42807679 is about 349.8167176438.

The spelling of 42807679 in words is "forty-two million, eight hundred seven thousand, six hundred seventy-nine".