63231732 has 48 divisors (see below), whose sum is σ = 167435520. Its totient is φ = 20627136.

The previous prime is 63231731. The next prime is 63231733. The reversal of 63231732 is 23713236.

It is an interprime number because it is at equal distance from previous prime (63231731) and next prime (63231733).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 63231696 and 63231705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63231731) 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, 1153 + ... + 11304.

It is an arithmetic number, because the mean of its divisors is an integer number (3488240).

Almost surely, 2^63231732 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 63231732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83717760).

63231732 is an abundant number, since it is smaller than the sum of its proper divisors (104203788).

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

63231732 is a wasteful number, since it uses less digits than its factorization.

63231732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12517 (or 12509 counting only the distinct ones).

The product of its digits is 4536, while the sum is 27.

The square root of 63231732 is about 7951.8382780336. The cubic root of 63231732 is about 398.3929941430.

Adding to 63231732 its reverse (23713236), we get a palindrome (86944968).

The spelling of 63231732 in words is "sixty-three million, two hundred thirty-one thousand, seven hundred thirty-two".