733663 has 8 divisors (see below), whose sum is σ = 844928. Its totient is φ = 624024.

The previous prime is 733651. The next prime is 733687. The reversal of 733663 is 366337.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-733663 is a prime.

It is a super-2 number, since 2×733663² = 1076522795138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (733963) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 820 + ... + 1462.

It is an arithmetic number, because the mean of its divisors is an integer number (105616).

2⁷³³⁶⁶³ is an apocalyptic number.

733663 is a deficient number, since it is larger than the sum of its proper divisors (111265).

733663 is a wasteful number, since it uses less digits than its factorization.

733663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813.

The product of its digits is 6804, while the sum is 28.

The square root of 733663 is about 856.5413008139. The cubic root of 733663 is about 90.1914853083.

It can be divided in two parts, 7 and 33663, that multiplied together give a triangular number (235641 = T₆₈₆).

The spelling of 733663 in words is "seven hundred thirty-three thousand, six hundred sixty-three".