633450064 has 80 divisors (see below), whose sum is σ = 1383942672. Its totient is φ = 278913024.

The previous prime is 633450049. The next prime is 633450079. The reversal of 633450064 is 460054336.

It is an interprime number because it is at equal distance from previous prime (633450049) and next prime (633450079).

It can be written as a sum of positive squares in 8 ways, for example, as 4443664 + 629006400 = 2108^2 + 25080^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407112 + ... + 408664.

Almost surely, 2^633450064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 633450064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691971336).

633450064 is an abundant number, since it is smaller than the sum of its proper divisors (750492608).

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

633450064 is a wasteful number, since it uses less digits than its factorization.

633450064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 633450064 is about 25168.4338805576. The cubic root of 633450064 is about 858.8239124831.

The spelling of 633450064 in words is "six hundred thirty-three million, four hundred fifty thousand, sixty-four".