42079837 has 2 divisors, whose sum is σ = 42079838. Its totient is φ = 42079836.

The previous prime is 42079789. The next prime is 42079847. The reversal of 42079837 is 73897024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36252441 + 5827396 = 6021^2 + 2414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42079837 is a prime.

It is a super-3 number, since 3×42079837³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42079837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42079847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21039918 + 21039919.

It is an arithmetic number, because the mean of its divisors is an integer number (21039919).

Almost surely, 2^42079837 is an apocalyptic number.

It is an amenable number.

42079837 is a deficient number, since it is larger than the sum of its proper divisors (1).

42079837 is an equidigital number, since it uses as much as digits as its factorization.

42079837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 42079837 is about 6486.8973323153. The cubic root of 42079837 is about 347.8227755072.

The spelling of 42079837 in words is "forty-two million, seventy-nine thousand, eight hundred thirty-seven".