169964073 has 12 divisors (see below), whose sum is σ = 249665520. Its totient is φ = 111388536.

The previous prime is 169964071. The next prime is 169964077. The reversal of 169964073 is 370469961.

It is not a de Polignac number, because 169964073 - 2¹ = 169964071 is a prime.

It is a super-2 number, since 2×169964073² = 57775572221498658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169964071) 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 in 11 ways as a sum of consecutive naturals, for example, 159511 + ... + 160572.

It is an arithmetic number, because the mean of its divisors is an integer number (20805460).

Almost surely, 2^169964073 is an apocalyptic number.

It is an amenable number.

169964073 is a deficient number, since it is larger than the sum of its proper divisors (79701447).

169964073 is a wasteful number, since it uses less digits than its factorization.

169964073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320148 (or 320145 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 169964073 is about 13037.0270000487. The cubic root of 169964073 is about 553.9267987492.

The spelling of 169964073 in words is "one hundred sixty-nine million, nine hundred sixty-four thousand, seventy-three".