13173028 has 36 divisors (see below), whose sum is σ = 26846316. Its totient is φ = 5632000.

The previous prime is 13173001. The next prime is 13173029. The reversal of 13173028 is 82037131.

It can be written as a sum of positive squares in 2 ways, for example, as 12236004 + 937024 = 3498^2 + 968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13172993 and 13173011.

It is not an unprimeable number, because it can be changed into a prime (13173029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7428 + ... + 9028.

It is an arithmetic number, because the mean of its divisors is an integer number (745731).

Almost surely, 2^13173028 is an apocalyptic number.

It is an amenable number.

13173028 is an abundant number, since it is smaller than the sum of its proper divisors (13673288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13173028 is a wasteful number, since it uses less digits than its factorization.

13173028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 13173028 is about 3629.4666274812. The cubic root of 13173028 is about 236.1720711966.

The spelling of 13173028 in words is "thirteen million, one hundred seventy-three thousand, twenty-eight".