42706173 has 4 divisors (see below), whose sum is σ = 56941568. Its totient is φ = 28470780.

The previous prime is 42706151. The next prime is 42706187. The reversal of 42706173 is 37160724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42706173 - 2⁶ = 42706109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42706173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42706123) 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, 7117693 + ... + 7117698.

It is an arithmetic number, because the mean of its divisors is an integer number (14235392).

Almost surely, 2^42706173 is an apocalyptic number.

It is an amenable number.

42706173 is a deficient number, since it is larger than the sum of its proper divisors (14235395).

42706173 is a wasteful number, since it uses less digits than its factorization.

42706173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14235394.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 42706173 is about 6534.9960214219. The cubic root of 42706173 is about 349.5400025027.

Adding to 42706173 its reverse (37160724), we get a palindrome (79866897).

The spelling of 42706173 in words is "forty-two million, seven hundred six thousand, one hundred seventy-three".