42586979 has 8 divisors (see below), whose sum is σ = 42978432. Its totient is φ = 42197760.

The previous prime is 42586939. The next prime is 42586981. The reversal of 42586979 is 97968524.

It is a happy number.

42586979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42586979 - 2¹⁶ = 42521443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42586909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78449 + ... + 78989.

It is an arithmetic number, because the mean of its divisors is an integer number (5372304).

Almost surely, 2^42586979 is an apocalyptic number.

42586979 is a deficient number, since it is larger than the sum of its proper divisors (391453).

42586979 is a wasteful number, since it uses less digits than its factorization.

42586979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117.

The product of its digits is 1088640, while the sum is 50.

The square root of 42586979 is about 6525.8699803168. The cubic root of 42586979 is about 349.2145078554.

The spelling of 42586979 in words is "forty-two million, five hundred eighty-six thousand, nine hundred seventy-nine".