42712073 has 2 divisors, whose sum is σ = 42712074. Its totient is φ = 42712072.

The previous prime is 42712067. The next prime is 42712091. The reversal of 42712073 is 37021724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22534009 + 20178064 = 4747^2 + 4492^2 .

It is a cyclic number.

It is not a de Polignac number, because 42712073 - 2⁶ = 42712009 is a prime.

It is not a weakly prime, because it can be changed into another prime (42712003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21356036 + 21356037.

It is an arithmetic number, because the mean of its divisors is an integer number (21356037).

Almost surely, 2^42712073 is an apocalyptic number.

It is an amenable number.

42712073 is a deficient number, since it is larger than the sum of its proper divisors (1).

42712073 is an equidigital number, since it uses as much as digits as its factorization.

42712073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 42712073 is about 6535.4474215619. The cubic root of 42712073 is about 349.5560984666.

Adding to 42712073 its reverse (37021724), we get a palindrome (79733797).

The spelling of 42712073 in words is "forty-two million, seven hundred twelve thousand, seventy-three".