628519885 has 16 divisors (see below), whose sum is σ = 889777152. Its totient is φ = 417081600.

The previous prime is 628519877. The next prime is 628519891. The reversal of 628519885 is 588915826.

It is not a de Polignac number, because 628519885 - 2³ = 628519877 is a prime.

It is a Duffinian number.

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, 288556 + ... + 290725.

It is an arithmetic number, because the mean of its divisors is an integer number (55611072).

Almost surely, 2^628519885 is an apocalyptic number.

It is an amenable number.

628519885 is a deficient number, since it is larger than the sum of its proper divisors (261257267).

628519885 is a wasteful number, since it uses less digits than its factorization.

628519885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579324.

The product of its digits is 1382400, while the sum is 52.

The square root of 628519885 is about 25070.2988614017. The cubic root of 628519885 is about 856.5900146071.

The spelling of 628519885 in words is "six hundred twenty-eight million, five hundred nineteen thousand, eight hundred eighty-five".