628001 has 8 divisors (see below), whose sum is σ = 704064. Its totient is φ = 555120.

The previous prime is 627973. The next prime is 628013. The reversal of 628001 is 100826.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628001 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (628021) 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, 365 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (88008).

2⁶²⁸⁰⁰¹ is an apocalyptic number.

It is an amenable number.

628001 is a deficient number, since it is larger than the sum of its proper divisors (76063).

628001 is a wasteful number, since it uses less digits than its factorization.

628001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 628001 is about 792.4651411892. The cubic root of 628001 is about 85.6354225685.

Adding to 628001 its reverse (100826), we get a palindrome (728827).

The spelling of 628001 in words is "six hundred twenty-eight thousand, one".