630826349 has 2 divisors, whose sum is σ = 630826350. Its totient is φ = 630826348.

The previous prime is 630826331. The next prime is 630826367. The reversal of 630826349 is 943628036.

It is a balanced prime because it is at equal distance from previous prime (630826331) and next prime (630826367).

It can be written as a sum of positive squares in only one way, i.e., 412821124 + 218005225 = 20318^2 + 14765^2 .

It is a cyclic number.

It is not a de Polignac number, because 630826349 - 2⁸ = 630826093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (630826309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315413174 + 315413175.

It is an arithmetic number, because the mean of its divisors is an integer number (315413175).

Almost surely, 2^630826349 is an apocalyptic number.

It is an amenable number.

630826349 is a deficient number, since it is larger than the sum of its proper divisors (1).

630826349 is an equidigital number, since it uses as much as digits as its factorization.

630826349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 630826349 is about 25116.2566677441. The cubic root of 630826349 is about 857.6365379683.

The spelling of 630826349 in words is "six hundred thirty million, eight hundred twenty-six thousand, three hundred forty-nine".