42379679 has 4 divisors (see below), whose sum is σ = 42703320. Its totient is φ = 42056040.

The previous prime is 42379669. The next prime is 42379693. The reversal of 42379679 is 97697324.

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

It is a cyclic number.

It is not a de Polignac number, because 42379679 - 2⁴ = 42379663 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 (42379619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161624 + ... + 161885.

It is an arithmetic number, because the mean of its divisors is an integer number (10675830).

Almost surely, 2^42379679 is an apocalyptic number.

42379679 is a deficient number, since it is larger than the sum of its proper divisors (323641).

42379679 is a wasteful number, since it uses less digits than its factorization.

42379679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323640.

The product of its digits is 571536, while the sum is 47.

The square root of 42379679 is about 6509.9676650503. The cubic root of 42379679 is about 348.6469639048.

The spelling of 42379679 in words is "forty-two million, three hundred seventy-nine thousand, six hundred seventy-nine".