633690064 has 40 divisors (see below), whose sum is σ = 1404374400. Its totient is φ = 271348608.

The previous prime is 633690007. The next prime is 633690067. The reversal of 633690064 is 460096336.

633690064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633690067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216837 + ... + 219739.

It is an arithmetic number, because the mean of its divisors is an integer number (35109360).

Almost surely, 2^633690064 is an apocalyptic number.

It is an amenable number.

633690064 is an abundant number, since it is smaller than the sum of its proper divisors (770684336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

633690064 is a wasteful number, since it uses less digits than its factorization.

633690064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 633690064 is about 25173.2013061510. The cubic root of 633690064 is about 858.9323618175.

The spelling of 633690064 in words is "six hundred thirty-three million, six hundred ninety thousand, sixty-four".