633440741 has 2 divisors, whose sum is σ = 633440742. Its totient is φ = 633440740.

The previous prime is 633440719. The next prime is 633440809. The reversal of 633440741 is 147044336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418202500 + 215238241 = 20450^2 + 14671^2 .

It is a cyclic number.

It is not a de Polignac number, because 633440741 - 2¹⁰ = 633439717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 633440698 and 633440707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633440441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316720370 + 316720371.

It is an arithmetic number, because the mean of its divisors is an integer number (316720371).

Almost surely, 2^633440741 is an apocalyptic number.

It is an amenable number.

633440741 is a deficient number, since it is larger than the sum of its proper divisors (1).

633440741 is an equidigital number, since it uses as much as digits as its factorization.

633440741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 633440741 is about 25168.2486677162. The cubic root of 633440741 is about 858.8196991257.

The spelling of 633440741 in words is "six hundred thirty-three million, four hundred forty thousand, seven hundred forty-one".