630829 has 4 divisors (see below), whose sum is σ = 633276. Its totient is φ = 628384.

The previous prime is 630827. The next prime is 630841. The reversal of 630829 is 928036.

630829 = T₆₄₇ + T₆₄₈ + T₆₄₉.

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 328329 + 302500 = 573^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 630829 - 2¹ = 630827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 630797 and 630806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630823) 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, 784 + ... + 1369.

It is an arithmetic number, because the mean of its divisors is an integer number (158319).

2⁶³⁰⁸²⁹ is an apocalyptic number.

630829 is the 649-th centered triangular number.

It is an amenable number.

630829 is a deficient number, since it is larger than the sum of its proper divisors (2447).

630829 is a wasteful number, since it uses less digits than its factorization.

630829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 630829 is about 794.2474425518. The cubic root of 630829 is about 85.7637739351.

The spelling of 630829 in words is "six hundred thirty thousand, eight hundred twenty-nine".