63471213 has 12 divisors (see below), whose sum is σ = 98733180. Its totient is φ = 39059136.

The previous prime is 63471211. The next prime is 63471241. The reversal of 63471213 is 31217436.

63471213 is a `hidden beast` number, since 634 + 7 + 1 + 21 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 43917129 = 4422^2 + 6627^2 .

It is not a de Polignac number, because 63471213 - 2¹ = 63471211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63471211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271128 + ... + 271361.

It is an arithmetic number, because the mean of its divisors is an integer number (8227765).

Almost surely, 2^63471213 is an apocalyptic number.

It is an amenable number.

63471213 is a deficient number, since it is larger than the sum of its proper divisors (35261967).

63471213 is a wasteful number, since it uses less digits than its factorization.

63471213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542508 (or 542505 counting only the distinct ones).

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

The square root of 63471213 is about 7966.8822634704. The cubic root of 63471213 is about 398.8953123884.

Adding to 63471213 its reverse (31217436), we get a palindrome (94688649).

The spelling of 63471213 in words is "sixty-three million, four hundred seventy-one thousand, two hundred thirteen".