631006373 has 2 divisors, whose sum is σ = 631006374. Its totient is φ = 631006372.

The previous prime is 631006361. The next prime is 631006423. The reversal of 631006373 is 373600136.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600348004 + 30658369 = 24502^2 + 5537^2 .

It is a cyclic number.

It is not a de Polignac number, because 631006373 - 2¹⁶ = 630940837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (631006303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315503186 + 315503187.

It is an arithmetic number, because the mean of its divisors is an integer number (315503187).

Almost surely, 2^631006373 is an apocalyptic number.

It is an amenable number.

631006373 is a deficient number, since it is larger than the sum of its proper divisors (1).

631006373 is an equidigital number, since it uses as much as digits as its factorization.

631006373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 631006373 is about 25119.8402264027. The cubic root of 631006373 is about 857.7181137594.

It can be divided in two parts, 6310063 and 73, that added together give a palindrome (6310136).

The spelling of 631006373 in words is "six hundred thirty-one million, six thousand, three hundred seventy-three".