628066 has 8 divisors (see below), whose sum is σ = 955584. Its totient is φ = 309540.

The previous prime is 628063. The next prime is 628093. The reversal of 628066 is 660826.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (628063) 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, 2070 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (119448).

2⁶²⁸⁰⁶⁶ is an apocalyptic number.

628066 is a deficient number, since it is larger than the sum of its proper divisors (327518).

628066 is a wasteful number, since it uses less digits than its factorization.

628066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 628066 is about 792.5061513957. The cubic root of 628066 is about 85.6383769748.

It can be divided in two parts, 62 and 8066, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 628066 in words is "six hundred twenty-eight thousand, sixty-six".