630699 has 4 divisors (see below), whose sum is σ = 840936. Its totient is φ = 420464.

The previous prime is 630689. The next prime is 630701. The reversal of 630699 is 996036.

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 630699 - 2¹¹ = 628651 is a prime.

It is a D-number.

It is a plaindrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 630699.

It is not an unprimeable number, because it can be changed into a prime (630659) 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, 105114 + ... + 105119.

It is an arithmetic number, because the mean of its divisors is an integer number (210234).

2⁶³⁰⁶⁹⁹ is an apocalyptic number.

630699 is a deficient number, since it is larger than the sum of its proper divisors (210237).

630699 is a wasteful number, since it uses less digits than its factorization.

630699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210236.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 630699 is about 794.1655998594. The cubic root of 630699 is about 85.7578821870.

The spelling of 630699 in words is "six hundred thirty thousand, six hundred ninety-nine".