628161826 has 8 divisors (see below), whose sum is σ = 942695424. Its totient is φ = 313930020.

The previous prime is 628161791. The next prime is 628161829.

628161826 is nontrivially palindromic in base 10.

628161826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (628161829) 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, 70170 + ... + 78613.

It is an arithmetic number, because the mean of its divisors is an integer number (117836928).

Almost surely, 2^628161826 is an apocalyptic number.

628161826 is a deficient number, since it is larger than the sum of its proper divisors (314533598).

628161826 is a wasteful number, since it uses less digits than its factorization.

628161826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150896.

The product of its digits is 55296, while the sum is 40.

The square root of 628161826 is about 25063.1567445125. The cubic root of 628161826 is about 856.4273212527.

The spelling of 628161826 in words is "six hundred twenty-eight million, one hundred sixty-one thousand, eight hundred twenty-six".