63212613 has 32 divisors (see below), whose sum is σ = 92695680. Its totient is φ = 38154240.

The previous prime is 63212581. The next prime is 63212629. The reversal of 63212613 is 31621236.

It is a happy number.

It is not a de Polignac number, because 63212613 - 2⁵ = 63212581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63212713) 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 31 ways as a sum of consecutive naturals, for example, 262173 + ... + 262413.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^63212613 is an apocalyptic number.

It is an amenable number.

63212613 is a deficient number, since it is larger than the sum of its proper divisors (29483067).

63212613 is a wasteful number, since it uses less digits than its factorization.

63212613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its digits is 1296, while the sum is 24.

The square root of 63212613 is about 7950.6360122949. The cubic root of 63212613 is about 398.3528368611.

Adding to 63212613 its reverse (31621236), we get a palindrome (94833849).

The spelling of 63212613 in words is "sixty-three million, two hundred twelve thousand, six hundred thirteen".