169424417 has 6 divisors (see below), whose sum is σ = 177111522. Its totient is φ = 162057632.

The previous prime is 169424413. The next prime is 169424419. The reversal of 169424417 is 714424961.

It can be written as a sum of positive squares in only one way, i.e., 149719696 + 19704721 = 12236^2 + 4439^2 .

It is not a de Polignac number, because 169424417 - 2² = 169424413 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169424413) 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 5 ways as a sum of consecutive naturals, for example, 159608 + ... + 160665.

It is an arithmetic number, because the mean of its divisors is an integer number (29518587).

Almost surely, 2^169424417 is an apocalyptic number.

It is an amenable number.

169424417 is a deficient number, since it is larger than the sum of its proper divisors (7687105).

169424417 is an equidigital number, since it uses as much as digits as its factorization.

169424417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320319 (or 320296 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 169424417 is about 13016.3134949954. The cubic root of 169424417 is about 553.3399161730.

The spelling of 169424417 in words is "one hundred sixty-nine million, four hundred twenty-four thousand, four hundred seventeen".