628077 has 4 divisors (see below), whose sum is σ = 837440. Its totient is φ = 418716.

The previous prime is 628063. The next prime is 628093. The reversal of 628077 is 770826.

628077 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 628077 - 2⁶ = 628013 is a prime.

It is a D-number.

It is a Duffinian number.

628077 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628077.

It is not an unprimeable number, because it can be changed into a prime (628037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104677 + ... + 104682.

It is an arithmetic number, because the mean of its divisors is an integer number (209360).

2⁶²⁸⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

628077 is a deficient number, since it is larger than the sum of its proper divisors (209363).

628077 is a wasteful number, since it uses less digits than its factorization.

628077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209362.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 628077 is about 792.5130913745. The cubic root of 628077 is about 85.6388769311.

The spelling of 628077 in words is "six hundred twenty-eight thousand, seventy-seven".