47046217 has 4 divisors (see below), whose sum is σ = 47221380. Its totient is φ = 46871056.

The previous prime is 47046193. The next prime is 47046221. The reversal of 47046217 is 71264074.

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 28132416 + 18913801 = 5304^2 + 4349^2 .

It is a cyclic number.

It is not a de Polignac number, because 47046217 - 2¹¹ = 47044169 is a prime.

It is a super-2 number, since 2×47046217² = 4426693068022178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47046227) 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, 87178 + ... + 87715.

It is an arithmetic number, because the mean of its divisors is an integer number (11805345).

Almost surely, 2^47046217 is an apocalyptic number.

It is an amenable number.

47046217 is a deficient number, since it is larger than the sum of its proper divisors (175163).

47046217 is a wasteful number, since it uses less digits than its factorization.

47046217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175162.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 47046217 is about 6859.0244933226. The cubic root of 47046217 is about 361.0008594143. Note that the first 3 decimals are identical.

The spelling of 47046217 in words is "forty-seven million, forty-six thousand, two hundred seventeen".