634310969 has 2 divisors, whose sum is σ = 634310970. Its totient is φ = 634310968.

The previous prime is 634310893. The next prime is 634311031. The reversal of 634310969 is 969013436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396010000 + 238300969 = 19900^2 + 15437^2 .

It is a cyclic number.

It is not a de Polignac number, because 634310969 - 2¹⁶ = 634245433 is a prime.

It is a super-2 number, since 2×634310969² = 804700810787437922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (634318969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317155484 + 317155485.

It is an arithmetic number, because the mean of its divisors is an integer number (317155485).

Almost surely, 2^634310969 is an apocalyptic number.

It is an amenable number.

634310969 is a deficient number, since it is larger than the sum of its proper divisors (1).

634310969 is an equidigital number, since it uses as much as digits as its factorization.

634310969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 634310969 is about 25185.5309453662. The cubic root of 634310969 is about 859.2128045439.

The spelling of 634310969 in words is "six hundred thirty-four million, three hundred ten thousand, nine hundred sixty-nine".