628507 has 8 divisors (see below), whose sum is σ = 726192. Its totient is φ = 537600.

The previous prime is 628499. The next prime is 628547. The reversal of 628507 is 705826.

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

It is a cyclic number.

It is not a de Polignac number, because 628507 - 2³ = 628499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628547) 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 7 ways as a sum of consecutive naturals, for example, 1494 + ... + 1867.

It is an arithmetic number, because the mean of its divisors is an integer number (90774).

2⁶²⁸⁵⁰⁷ is an apocalyptic number.

628507 is a deficient number, since it is larger than the sum of its proper divisors (97685).

628507 is a wasteful number, since it uses less digits than its factorization.

628507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 628507 is about 792.7843338513. The cubic root of 628507 is about 85.6584161047.

The spelling of 628507 in words is "six hundred twenty-eight thousand, five hundred seven".