169434697 has 4 divisors (see below), whose sum is σ = 171579520. Its totient is φ = 167289876.

The previous prime is 169434689. The next prime is 169434701. The reversal of 169434697 is 796434961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 169434697 - 2³ = 169434689 is a prime.

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 169434697.

It is not an unprimeable number, because it can be changed into a prime (169434667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072293 + ... + 1072450.

It is an arithmetic number, because the mean of its divisors is an integer number (42894880).

Almost surely, 2^169434697 is an apocalyptic number.

It is an amenable number.

169434697 is a deficient number, since it is larger than the sum of its proper divisors (2144823).

169434697 is an equidigital number, since it uses as much as digits as its factorization.

169434697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144822.

The product of its digits is 979776, while the sum is 49.

The square root of 169434697 is about 13016.7083780808. The cubic root of 169434697 is about 553.3511074354.

The spelling of 169434697 in words is "one hundred sixty-nine million, four hundred thirty-four thousand, six hundred ninety-seven".