633506 has 4 divisors (see below), whose sum is σ = 950262. Its totient is φ = 316752.

The previous prime is 633497. The next prime is 633559. The reversal of 633506 is 605336.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 477481 + 156025 = 691^2 + 395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158375 + ... + 158378.

2⁶³³⁵⁰⁶ is an apocalyptic number.

633506 is a deficient number, since it is larger than the sum of its proper divisors (316756).

633506 is a wasteful number, since it uses less digits than its factorization.

633506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316755.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 633506 is about 795.9309015235. The cubic root of 633506 is about 85.8849190856.

The spelling of 633506 in words is "six hundred thirty-three thousand, five hundred six".