628449 has 8 divisors (see below), whose sum is σ = 842112. Its totient is φ = 416880.

The previous prime is 628447. The next prime is 628477. The reversal of 628449 is 944826.

628449 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 a de Polignac number, because 628449 - 2¹ = 628447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (628447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427 + ... + 1199.

It is an arithmetic number, because the mean of its divisors is an integer number (105264).

2⁶²⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

628449 is a deficient number, since it is larger than the sum of its proper divisors (213663).

628449 is a wasteful number, since it uses less digits than its factorization.

628449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

The product of its digits is 13824, while the sum is 33.

The square root of 628449 is about 792.7477530716. The cubic root of 628449 is about 85.6557811083.

The spelling of 628449 in words is "six hundred twenty-eight thousand, four hundred forty-nine".