630686083 has 4 divisors (see below), whose sum is σ = 630944200. Its totient is φ = 630427968.

The previous prime is 630686081. The next prime is 630686093. The reversal of 630686083 is 380686036.

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

It is a cyclic number.

It is not a de Polignac number, because 630686083 - 2¹ = 630686081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630686081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125358 + ... + 130291.

It is an arithmetic number, because the mean of its divisors is an integer number (157736050).

Almost surely, 2^630686083 is an apocalyptic number.

630686083 is a deficient number, since it is larger than the sum of its proper divisors (258117).

630686083 is a wasteful number, since it uses less digits than its factorization.

630686083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258116.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 630686083 is about 25113.4641776080. The cubic root of 630686083 is about 857.5729672968.

The spelling of 630686083 in words is "six hundred thirty million, six hundred eighty-six thousand, eighty-three".