629828 has 6 divisors (see below), whose sum is σ = 1102206. Its totient is φ = 314912.

The previous prime is 629819. The next prime is 629843. The reversal of 629828 is 828926.

It can be written as a sum of positive squares in only one way, i.e., 407044 + 222784 = 638^2 + 472^2 .

It is an unprimeable number.

629828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78725 + ... + 78732.

It is an arithmetic number, because the mean of its divisors is an integer number (183701).

629828 is a Friedman number, since it can be written as 6^9/(8*2)-28, using all its digits and the basic arithmetic operations.

2⁶²⁹⁸²⁸ is an apocalyptic number.

It is an amenable number.

629828 is a deficient number, since it is larger than the sum of its proper divisors (472378).

629828 is a wasteful number, since it uses less digits than its factorization.

629828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157461 (or 157459 counting only the distinct ones).

The product of its digits is 13824, while the sum is 35.

The square root of 629828 is about 793.6170361075. The cubic root of 629828 is about 85.7183865763.

The spelling of 629828 in words is "six hundred twenty-nine thousand, eight hundred twenty-eight".