174989473 has 2 divisors, whose sum is σ = 174989474. Its totient is φ = 174989472.

The previous prime is 174989471. The next prime is 174989491. The reversal of 174989473 is 374989471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172580769 + 2408704 = 13137^2 + 1552^2 .

It is a cyclic number.

It is not a de Polignac number, because 174989473 - 2¹ = 174989471 is a prime.

Together with 174989471, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 174989473.

It is not a weakly prime, because it can be changed into another prime (174989471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87494736 + 87494737.

It is an arithmetic number, because the mean of its divisors is an integer number (87494737).

Almost surely, 2^174989473 is an apocalyptic number.

It is an amenable number.

174989473 is a deficient number, since it is larger than the sum of its proper divisors (1).

174989473 is an equidigital number, since it uses as much as digits as its factorization.

174989473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 174989473 is about 13228.3586661384. The cubic root of 174989473 is about 559.3332551601. Note that the first 3 decimals are identical.

The spelling of 174989473 in words is "one hundred seventy-four million, nine hundred eighty-nine thousand, four hundred seventy-three".