169728628 has 12 divisors (see below), whose sum is σ = 298156320. Its totient is φ = 84541112.

The previous prime is 169728623. The next prime is 169728641. The reversal of 169728628 is 826827961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169728623) 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, 79618 + ... + 81721.

It is an arithmetic number, because the mean of its divisors is an integer number (24846360).

Almost surely, 2^169728628 is an apocalyptic number.

It is an amenable number.

169728628 is a deficient number, since it is larger than the sum of its proper divisors (128427692).

169728628 is a wasteful number, since it uses less digits than its factorization.

169728628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161606 (or 161604 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 169728628 is about 13027.9940128939. The cubic root of 169728628 is about 553.6709023884.

It can be divided in two parts, 16972 and 8628, that added together give a square (25600 = 160²).

The spelling of 169728628 in words is "one hundred sixty-nine million, seven hundred twenty-eight thousand, six hundred twenty-eight".