169944097 has 4 divisors (see below), whose sum is σ = 171696196. Its totient is φ = 168192000.

The previous prime is 169944091. The next prime is 169944101. The reversal of 169944097 is 790449961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114575616 + 55368481 = 10704^2 + 7441^2 .

It is a cyclic number.

It is not a de Polignac number, because 169944097 - 2¹¹ = 169942049 is a prime.

It is a super-2 number, since 2×169944097² = 57761992210290818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169944097.

It is not an unprimeable number, because it can be changed into a prime (169944091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875904 + ... + 876097.

It is an arithmetic number, because the mean of its divisors is an integer number (42924049).

Almost surely, 2^169944097 is an apocalyptic number.

It is an amenable number.

169944097 is a deficient number, since it is larger than the sum of its proper divisors (1752099).

169944097 is an equidigital number, since it uses as much as digits as its factorization.

169944097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752098.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 169944097 is about 13036.2608519468. The cubic root of 169944097 is about 553.9050967603.

It can be divided in two parts, 1699 and 44097, that added together give a square (45796 = 214²).

The spelling of 169944097 in words is "one hundred sixty-nine million, nine hundred forty-four thousand, ninety-seven".