63312612 has 48 divisors (see below), whose sum is σ = 161808192. Its totient is φ = 19108480.

The previous prime is 63312611. The next prime is 63312643. The reversal of 63312612 is 21621336.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (63312611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37858 + ... + 39494.

It is an arithmetic number, because the mean of its divisors is an integer number (3371004).

Almost surely, 2^63312612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63312612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80904096).

63312612 is an abundant number, since it is smaller than the sum of its proper divisors (98495580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63312612 is a wasteful number, since it uses less digits than its factorization.

63312612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1946 counting only the distinct ones).

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

The square root of 63312612 is about 7956.9222693200. The cubic root of 63312612 is about 398.5627838760.

Adding to 63312612 its reverse (21621336), we get a palindrome (84933948).

The spelling of 63312612 in words is "sixty-three million, three hundred twelve thousand, six hundred twelve".