173993444 has 6 divisors (see below), whose sum is σ = 304488534. Its totient is φ = 86996720.

The previous prime is 173993441. The next prime is 173993473. The reversal of 173993444 is 444399371.

It can be written as a sum of positive squares in only one way, i.e., 102252544 + 71740900 = 10112^2 + 8470^2 .

It is a super-2 number, since 2×173993444² = 60547437109962272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 173993395 and 173993404.

It is not an unprimeable number, because it can be changed into a prime (173993441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21749177 + ... + 21749184.

It is an arithmetic number, because the mean of its divisors is an integer number (50748089).

Almost surely, 2^173993444 is an apocalyptic number.

It is an amenable number.

173993444 is a deficient number, since it is larger than the sum of its proper divisors (130495090).

173993444 is a wasteful number, since it uses less digits than its factorization.

173993444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43498365 (or 43498363 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 173993444 is about 13190.6574513934. The cubic root of 173993444 is about 558.2700054607.

The spelling of 173993444 in words is "one hundred seventy-three million, nine hundred ninety-three thousand, four hundred forty-four".