442967617 has 4 divisors (see below), whose sum is σ = 445262980. Its totient is φ = 440672256.

The previous prime is 442967593. The next prime is 442967627. The reversal of 442967617 is 716769244.

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 305515441 + 137452176 = 17479^2 + 11724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442967617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442967627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147392 + ... + 1147777.

It is an arithmetic number, because the mean of its divisors is an integer number (111315745).

Almost surely, 2^442967617 is an apocalyptic number.

It is an amenable number.

442967617 is a deficient number, since it is larger than the sum of its proper divisors (2295363).

442967617 is a wasteful number, since it uses less digits than its factorization.

442967617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295362.

The product of its digits is 508032, while the sum is 46.

The square root of 442967617 is about 21046.7958844096. The cubic root of 442967617 is about 762.2966176905.

The spelling of 442967617 in words is "four hundred forty-two million, nine hundred sixty-seven thousand, six hundred seventeen".