733563664 has 80 divisors (see below), whose sum is σ = 1508792320. Its totient is φ = 345047040.

The previous prime is 733563661. The next prime is 733563673. The reversal of 733563664 is 466365337.

It is a super-2 number, since 2×733563664² = 1076231298282209792, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 733563664.

It is not an unprimeable number, because it can be changed into a prime (733563661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3800752 + ... + 3800944.

It is an arithmetic number, because the mean of its divisors is an integer number (18859904).

Almost surely, 2^733563664 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 733563664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754396160).

733563664 is an abundant number, since it is smaller than the sum of its proper divisors (775228656).

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

733563664 is a wasteful number, since it uses less digits than its factorization.

733563664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 402 counting only the distinct ones).

The product of its digits is 816480, while the sum is 43.

The square root of 733563664 is about 27084.3804433478. The cubic root of 733563664 is about 901.8741456289.

The spelling of 733563664 in words is "seven hundred thirty-three million, five hundred sixty-three thousand, six hundred sixty-four".