631056973 has 2 divisors, whose sum is σ = 631056974. Its totient is φ = 631056972.

The previous prime is 631056971. The next prime is 631056997. The reversal of 631056973 is 379650136.

631056973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 560126889 + 70930084 = 23667^2 + 8422^2 .

It is a cyclic number.

It is not a de Polignac number, because 631056973 - 2¹ = 631056971 is a prime.

Together with 631056971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631056971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315528486 + 315528487.

It is an arithmetic number, because the mean of its divisors is an integer number (315528487).

Almost surely, 2^631056973 is an apocalyptic number.

It is an amenable number.

631056973 is a deficient number, since it is larger than the sum of its proper divisors (1).

631056973 is an equidigital number, since it uses as much as digits as its factorization.

631056973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 631056973 is about 25120.8473782235. The cubic root of 631056973 is about 857.7410397701.

The spelling of 631056973 in words is "six hundred thirty-one million, fifty-six thousand, nine hundred seventy-three".