633206945 has 16 divisors (see below), whose sum is σ = 872906880. Its totient is φ = 431944704.

The previous prime is 633206941. The next prime is 633206999. The reversal of 633206945 is 549602336.

It is a cyclic number.

It is not a de Polignac number, because 633206945 - 2² = 633206941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 633206899 and 633206908.

It is not an unprimeable number, because it can be changed into a prime (633206941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40115 + ... + 53624.

It is an arithmetic number, because the mean of its divisors is an integer number (54556680).

Almost surely, 2^633206945 is an apocalyptic number.

It is an amenable number.

633206945 is a deficient number, since it is larger than the sum of its proper divisors (239699935).

633206945 is a wasteful number, since it uses less digits than its factorization.

633206945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93944.

The product of its (nonzero) digits is 116640, while the sum is 38.

The square root of 633206945 is about 25163.6035773893. The cubic root of 633206945 is about 858.7140258267.

The spelling of 633206945 in words is "six hundred thirty-three million, two hundred six thousand, nine hundred forty-five".