628000829 has 4 divisors (see below), whose sum is σ = 649656060. Its totient is φ = 606345600.

The previous prime is 628000819. The next prime is 628000837. The reversal of 628000829 is 928000826.

628000829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 99460729 + 528540100 = 9973^2 + 22990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628000829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628000819) 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, 10827572 + ... + 10827629.

It is an arithmetic number, because the mean of its divisors is an integer number (162414015).

Almost surely, 2^628000829 is an apocalyptic number.

It is an amenable number.

628000829 is a deficient number, since it is larger than the sum of its proper divisors (21655231).

628000829 is a wasteful number, since it uses less digits than its factorization.

628000829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21655230.

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

The square root of 628000829 is about 25059.9447126286. The cubic root of 628000829 is about 856.3541479583.

The spelling of 628000829 in words is "six hundred twenty-eight million, eight hundred twenty-nine", and thus it is an aban number.