633965 has 8 divisors (see below), whose sum is σ = 768768. Its totient is φ = 501840.

The previous prime is 633961. The next prime is 633967. The reversal of 633965 is 569336.

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

It is not a de Polignac number, because 633965 - 2² = 633961 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101 + ... + 1130.

It is an arithmetic number, because the mean of its divisors is an integer number (96096).

2⁶³³⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

633965 is a deficient number, since it is larger than the sum of its proper divisors (134803).

633965 is a wasteful number, since it uses less digits than its factorization.

633965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339.

The product of its digits is 14580, while the sum is 32.

The square root of 633965 is about 796.2191909267. The cubic root of 633965 is about 85.9056564114.

The spelling of 633965 in words is "six hundred thirty-three thousand, nine hundred sixty-five".