628036685 has 16 divisors (see below), whose sum is σ = 769012272. Its totient is φ = 492288000.

The previous prime is 628036613. The next prime is 628036693. The reversal of 628036685 is 586630826.

628036685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3736489 + 624300196 = 1933^2 + 24986^2 .

It is not a de Polignac number, because 628036685 - 2¹² = 628032589 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, 42575 + ... + 55395.

It is an arithmetic number, because the mean of its divisors is an integer number (48063267).

Almost surely, 2^628036685 is an apocalyptic number.

It is an amenable number.

628036685 is a deficient number, since it is larger than the sum of its proper divisors (140975587).

628036685 is a wasteful number, since it uses less digits than its factorization.

628036685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13024.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 628036685 is about 25060.6601070283. The cubic root of 628036685 is about 856.3704456278.

The spelling of 628036685 in words is "six hundred twenty-eight million, thirty-six thousand, six hundred eighty-five".