628088285 has 16 divisors (see below), whose sum is σ = 823037760. Its totient is φ = 456339840.

The previous prime is 628088257. The next prime is 628088291. The reversal of 628088285 is 582880826.

It is not a de Polignac number, because 628088285 - 2⁶ = 628088221 is a prime.

It is a super-3 number, since 3×628088285³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56681 + ... + 66849.

It is an arithmetic number, because the mean of its divisors is an integer number (51439860).

Almost surely, 2^628088285 is an apocalyptic number.

It is an amenable number.

628088285 is a deficient number, since it is larger than the sum of its proper divisors (194949475).

628088285 is a wasteful number, since it uses less digits than its factorization.

628088285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308.

The product of its (nonzero) digits is 491520, while the sum is 47.

The square root of 628088285 is about 25061.6895878949. The cubic root of 628088285 is about 856.3938983474.

The spelling of 628088285 in words is "six hundred twenty-eight million, eighty-eight thousand, two hundred eighty-five".