630239 has 4 divisors (see below), whose sum is σ = 634056. Its totient is φ = 626424.

The previous prime is 630229. The next prime is 630247. The reversal of 630239 is 932036.

It is a happy number.

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 630239 - 2¹⁶ = 564703 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 3 + 2¹⁹ + 0 + 3⁵ + 9⁵ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630229) 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, 1649 + ... + 1994.

It is an arithmetic number, because the mean of its divisors is an integer number (158514).

2⁶³⁰²³⁹ is an apocalyptic number.

630239 is a deficient number, since it is larger than the sum of its proper divisors (3817).

630239 is a wasteful number, since it uses less digits than its factorization.

630239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 630239 is about 793.8759348916. The cubic root of 630239 is about 85.7370279601.

The spelling of 630239 in words is "six hundred thirty thousand, two hundred thirty-nine".