31712063 has 4 divisors (see below), whose sum is σ = 31758648. Its totient is φ = 31665480.

The previous prime is 31712053. The next prime is 31712069. The reversal of 31712063 is 36021713.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31712063 - 2⁴ = 31712047 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31712069) 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 3 ways as a sum of consecutive naturals, for example, 22256 + ... + 23637.

It is an arithmetic number, because the mean of its divisors is an integer number (7939662).

Almost surely, 2^31712063 is an apocalyptic number.

31712063 is a deficient number, since it is larger than the sum of its proper divisors (46585).

31712063 is an equidigital number, since it uses as much as digits as its factorization.

31712063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46584.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 31712063 is about 5631.3464642126. The cubic root of 31712063 is about 316.5251076734.

Adding to 31712063 its reverse (36021713), we get a palindrome (67733776).

The spelling of 31712063 in words is "thirty-one million, seven hundred twelve thousand, sixty-three".