173669913 has 12 divisors (see below), whose sum is σ = 260147888. Its totient is φ = 115779780.

The previous prime is 173669879. The next prime is 173669927. The reversal of 173669913 is 319966371.

It is a de Polignac number, because none of the positive numbers 2^k-173669913 is a prime.

It is a super-2 number, since 2×173669913² = 60322477362855138, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (173669933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357103 + ... + 357588.

Almost surely, 2^173669913 is an apocalyptic number.

It is an amenable number.

173669913 is a deficient number, since it is larger than the sum of its proper divisors (86477975).

173669913 is an frugal number, since it uses more digits than its factorization.

173669913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714706 (or 714694 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 173669913 is about 13178.3881032545. The cubic root of 173669913 is about 557.9237669009.

The spelling of 173669913 in words is "one hundred seventy-three million, six hundred sixty-nine thousand, nine hundred thirteen".