42207673 has 4 divisors (see below), whose sum is σ = 43663140. Its totient is φ = 40752208.

The previous prime is 42207661. The next prime is 42207679. The reversal of 42207673 is 37670224.

It is a happy number.

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 30118144 + 12089529 = 5488^2 + 3477^2 .

It is a cyclic number.

It is not a de Polignac number, because 42207673 - 2²⁵ = 8653241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42207679) 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, 727690 + ... + 727747.

It is an arithmetic number, because the mean of its divisors is an integer number (10915785).

Almost surely, 2^42207673 is an apocalyptic number.

It is an amenable number.

42207673 is a deficient number, since it is larger than the sum of its proper divisors (1455467).

42207673 is a wasteful number, since it uses less digits than its factorization.

42207673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455466.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 42207673 is about 6496.7432610501. The cubic root of 42207673 is about 348.1746409511.

Adding to 42207673 its reverse (37670224), we get a palindrome (79877897).

The spelling of 42207673 in words is "forty-two million, two hundred seven thousand, six hundred seventy-three".