31963064 has 32 divisors (see below), whose sum is σ = 69465600. Its totient is φ = 13503840.

The previous prime is 31963049. The next prime is 31963069. The reversal of 31963064 is 46036913.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31963064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31963069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44 + ... + 7995.

It is an arithmetic number, because the mean of its divisors is an integer number (2170800).

Almost surely, 2^31963064 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 31963064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34732800).

31963064 is an abundant number, since it is smaller than the sum of its proper divisors (37502536).

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

31963064 is a wasteful number, since it uses less digits than its factorization.

31963064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8119 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 31963064 is about 5653.5885948661. The cubic root of 31963064 is about 317.3580128551.

Adding to 31963064 its reverse (46036913), we get a palindrome (77999977).

The spelling of 31963064 in words is "thirty-one million, nine hundred sixty-three thousand, sixty-four".