628727 has 8 divisors (see below), whose sum is σ = 697872. Its totient is φ = 561600.

The previous prime is 628721. The next prime is 628753. The reversal of 628727 is 727826.

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-628727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628693 and 628702.

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 628727.

It is not an unprimeable number, because it can be changed into a prime (628721) 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, 203 + ... + 1139.

It is an arithmetic number, because the mean of its divisors is an integer number (87234).

2⁶²⁸⁷²⁷ is an apocalyptic number.

628727 is a deficient number, since it is larger than the sum of its proper divisors (69145).

628727 is a wasteful number, since it uses less digits than its factorization.

628727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its digits is 9408, while the sum is 32.

The square root of 628727 is about 792.9230731918. The cubic root of 628727 is about 85.6684094450.

Subtracting 628727 from its reverse (727826), we obtain a palindrome (99099).

The spelling of 628727 in words is "six hundred twenty-eight thousand, seven hundred twenty-seven".