42517673 has 4 divisors (see below), whose sum is σ = 46382928. Its totient is φ = 38652420.

The previous prime is 42517661. The next prime is 42517693. The reversal of 42517673 is 37671524.

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 a cyclic number.

It is not a de Polignac number, because 42517673 - 2²⁰ = 41469097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42517603) 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, 1932611 + ... + 1932632.

It is an arithmetic number, because the mean of its divisors is an integer number (11595732).

Almost surely, 2^42517673 is an apocalyptic number.

It is an amenable number.

42517673 is a deficient number, since it is larger than the sum of its proper divisors (3865255).

42517673 is a wasteful number, since it uses less digits than its factorization.

42517673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865254.

The product of its digits is 35280, while the sum is 35.

The square root of 42517673 is about 6520.5577215450. The cubic root of 42517673 is about 349.0249679047.

It can be divided in two parts, 42 and 517673, that added together give a palindrome (517715).

The spelling of 42517673 in words is "forty-two million, five hundred seventeen thousand, six hundred seventy-three".