47204217 has 6 divisors (see below), whose sum is σ = 68183882. Its totient is φ = 31469472.

The previous prime is 47204207. The next prime is 47204233. The reversal of 47204217 is 71240274.

It is a happy number.

47204217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 35569296 + 11634921 = 5964^2 + 3411^2 .

It is not a de Polignac number, because 47204217 - 2¹⁰ = 47203193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47204207) 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 5 ways as a sum of consecutive naturals, for example, 2622448 + ... + 2622465.

Almost surely, 2^47204217 is an apocalyptic number.

It is an amenable number.

47204217 is a deficient number, since it is larger than the sum of its proper divisors (20979665).

47204217 is a wasteful number, since it uses less digits than its factorization.

47204217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5244919 (or 5244916 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 47204217 is about 6870.5325121129. The cubic root of 47204217 is about 361.4045362383.

The spelling of 47204217 in words is "forty-seven million, two hundred four thousand, two hundred seventeen".