633482989 has 4 divisors (see below), whose sum is σ = 655327260. Its totient is φ = 611638720.

The previous prime is 633482953. The next prime is 633483001. The reversal of 633482989 is 989284336.

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

It can be written as a sum of positive squares in 2 ways, for example, as 310993225 + 322489764 = 17635^2 + 17958^2 .

It is a cyclic number.

It is not a de Polignac number, because 633482989 - 2¹¹ = 633480941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (633482939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10922092 + ... + 10922149.

It is an arithmetic number, because the mean of its divisors is an integer number (163831815).

Almost surely, 2^633482989 is an apocalyptic number.

It is an amenable number.

633482989 is a deficient number, since it is larger than the sum of its proper divisors (21844271).

633482989 is a wasteful number, since it uses less digits than its factorization.

633482989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21844270.

The product of its digits is 2239488, while the sum is 52.

The square root of 633482989 is about 25169.0879652005. The cubic root of 633482989 is about 858.8387919972.

The spelling of 633482989 in words is "six hundred thirty-three million, four hundred eighty-two thousand, nine hundred eighty-nine".