47163213 has 6 divisors (see below), whose sum is σ = 68124654. Its totient is φ = 31442136.

The previous prime is 47163169. The next prime is 47163227. The reversal of 47163213 is 31236174.

It can be written as a sum of positive squares in only one way, i.e., 27688644 + 19474569 = 5262^2 + 4413^2 .

It is not a de Polignac number, because 47163213 - 2¹² = 47159117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47163283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2620170 + ... + 2620187.

It is an arithmetic number, because the mean of its divisors is an integer number (11354109).

Almost surely, 2^47163213 is an apocalyptic number.

It is an amenable number.

47163213 is a deficient number, since it is larger than the sum of its proper divisors (20961441).

47163213 is a wasteful number, since it uses less digits than its factorization.

47163213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240363 (or 5240360 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 47163213 is about 6867.5478156326. The cubic root of 47163213 is about 361.2998610950.

Adding to 47163213 its reverse (31236174), we get a palindrome (78399387).

The spelling of 47163213 in words is "forty-seven million, one hundred sixty-three thousand, two hundred thirteen".