633634 has 4 divisors (see below), whose sum is σ = 950454. Its totient is φ = 316816.

The previous prime is 633629. The next prime is 633649. The reversal of 633634 is 436336.

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., 558009 + 75625 = 747^2 + 275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 633599 and 633608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158407 + ... + 158410.

2⁶³³⁶³⁴ is an apocalyptic number.

633634 is a deficient number, since it is larger than the sum of its proper divisors (316820).

633634 is a wasteful number, since it uses less digits than its factorization.

633634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316819.

The product of its digits is 3888, while the sum is 25.

The square root of 633634 is about 796.0113064524. The cubic root of 633634 is about 85.8907030504.

The spelling of 633634 in words is "six hundred thirty-three thousand, six hundred thirty-four".