628079 has 4 divisors (see below), whose sum is σ = 643440. Its totient is φ = 612720.

The previous prime is 628063. The next prime is 628093. The reversal of 628079 is 970826.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 628079 - 2⁴ = 628063 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 (628049) 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, 7619 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (160860).

2⁶²⁸⁰⁷⁹ is an apocalyptic number.

628079 is a deficient number, since it is larger than the sum of its proper divisors (15361).

628079 is a wasteful number, since it uses less digits than its factorization.

628079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 628079 is about 792.5143531823. The cubic root of 628079 is about 85.6389678316.

The spelling of 628079 in words is "six hundred twenty-eight thousand, seventy-nine".