42067097 has 4 divisors (see below), whose sum is σ = 42127140. Its totient is φ = 42007056.

The previous prime is 42067087. The next prime is 42067111. The reversal of 42067097 is 79076024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11806096 + 30261001 = 3436^2 + 5501^2 .

It is a cyclic number.

It is not a de Polignac number, because 42067097 - 2⁸ = 42066841 is a prime.

It is a super-3 number, since 3×42067097³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42067037) 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 in 3 ways as a sum of consecutive naturals, for example, 28958 + ... + 30375.

It is an arithmetic number, because the mean of its divisors is an integer number (10531785).

Almost surely, 2^42067097 is an apocalyptic number.

It is an amenable number.

42067097 is a deficient number, since it is larger than the sum of its proper divisors (60043).

42067097 is an equidigital number, since it uses as much as digits as its factorization.

42067097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60042.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 42067097 is about 6485.9152785093. The cubic root of 42067097 is about 347.7876699416.

The spelling of 42067097 in words is "forty-two million, sixty-seven thousand, ninety-seven".