633729949 has 2 divisors, whose sum is σ = 633729950. Its totient is φ = 633729948.

The previous prime is 633729913. The next prime is 633730039. The reversal of 633729949 is 949927336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434722500 + 199007449 = 20850^2 + 14107^2 .

It is a cyclic number.

It is not a de Polignac number, because 633729949 - 2¹³ = 633721757 is a prime.

It is a super-2 number, since 2×633729949² = 803227296519085202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 633729896 and 633729905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633729049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316864974 + 316864975.

It is an arithmetic number, because the mean of its divisors is an integer number (316864975).

Almost surely, 2^633729949 is an apocalyptic number.

It is an amenable number.

633729949 is a deficient number, since it is larger than the sum of its proper divisors (1).

633729949 is an equidigital number, since it uses as much as digits as its factorization.

633729949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 52.

The square root of 633729949 is about 25173.9935052029. The cubic root of 633729949 is about 858.9503820877.

The spelling of 633729949 in words is "six hundred thirty-three million, seven hundred twenty-nine thousand, nine hundred forty-nine".