633261 has 8 divisors (see below), whose sum is σ = 864160. Its totient is φ = 412272.

The previous prime is 633257. The next prime is 633263. The reversal of 633261 is 162336.

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

It is not a de Polignac number, because 633261 - 2² = 633257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633263) 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, 2326 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (108020).

2⁶³³²⁶¹ is an apocalyptic number.

It is an amenable number.

633261 is a deficient number, since it is larger than the sum of its proper divisors (230899).

633261 is a wasteful number, since it uses less digits than its factorization.

633261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955.

The product of its digits is 648, while the sum is 21.

The square root of 633261 is about 795.7769788075. The cubic root of 633261 is about 85.8738460422.

Adding to 633261 its reverse (162336), we get a palindrome (795597).

The spelling of 633261 in words is "six hundred thirty-three thousand, two hundred sixty-one".