47224609 has 4 divisors (see below), whose sum is σ = 47431060. Its totient is φ = 47018160.

The previous prime is 47224607. The next prime is 47224627. The reversal of 47224609 is 90642274.

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 43930384 + 3294225 = 6628^2 + 1815^2 .

It is a cyclic number.

It is not a de Polignac number, because 47224609 - 2¹ = 47224607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47224601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102882 + ... + 103339.

It is an arithmetic number, because the mean of its divisors is an integer number (11857765).

Almost surely, 2^47224609 is an apocalyptic number.

It is an amenable number.

47224609 is a deficient number, since it is larger than the sum of its proper divisors (206451).

47224609 is a wasteful number, since it uses less digits than its factorization.

47224609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206450.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 47224609 is about 6872.0163707605. The cubic root of 47224609 is about 361.4565704334.

The spelling of 47224609 in words is "forty-seven million, two hundred twenty-four thousand, six hundred nine".