63312907 has 4 divisors (see below), whose sum is σ = 72357616. Its totient is φ = 54268200.

The previous prime is 63312853. The next prime is 63313001. The reversal of 63312907 is 70921336.

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

It is a de Polignac number, because none of the positive numbers 2^k-63312907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63312407) 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 3 ways as a sum of consecutive naturals, for example, 4522344 + ... + 4522357.

It is an arithmetic number, because the mean of its divisors is an integer number (18089404).

Almost surely, 2^63312907 is an apocalyptic number.

63312907 is a deficient number, since it is larger than the sum of its proper divisors (9044709).

63312907 is an equidigital number, since it uses as much as digits as its factorization.

63312907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044708.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 63312907 is about 7956.9408066166. The cubic root of 63312907 is about 398.5634028987.

The spelling of 63312907 in words is "sixty-three million, three hundred twelve thousand, nine hundred seven".