633982 has 4 divisors (see below), whose sum is σ = 950976. Its totient is φ = 316990.

The previous prime is 633967. The next prime is 633991. The reversal of 633982 is 289336.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 158494 + ... + 158497.

It is an arithmetic number, because the mean of its divisors is an integer number (237744).

2⁶³³⁹⁸² is an apocalyptic number.

633982 is a deficient number, since it is larger than the sum of its proper divisors (316994).

633982 is a wasteful number, since it uses less digits than its factorization.

633982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316993.

The product of its digits is 7776, while the sum is 31.

The square root of 633982 is about 796.2298663075. The cubic root of 633982 is about 85.9064242682.

The spelling of 633982 in words is "six hundred thirty-three thousand, nine hundred eighty-two".