633213 has 36 divisors (see below), whose sum is σ = 1150240. Its totient is φ = 327888.

The previous prime is 633209. The next prime is 633221. The reversal of 633213 is 312336.

It is a happy number.

It is not a de Polignac number, because 633213 - 2² = 633209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633253) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27520 + ... + 27542.

2⁶³³²¹³ is an apocalyptic number.

633213 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

633213 is a deficient number, since it is larger than the sum of its proper divisors (517027).

633213 is a wasteful number, since it uses less digits than its factorization.

633213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 52 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 633213 is about 795.7468190323. The cubic root of 633213 is about 85.8716762950.

Adding to 633213 its reverse (312336), we get a palindrome (945549).

The spelling of 633213 in words is "six hundred thirty-three thousand, two hundred thirteen".