169057697 has 4 divisors (see below), whose sum is σ = 169086996. Its totient is φ = 169028400.

The previous prime is 169057643. The next prime is 169057703. The reversal of 169057697 is 796750961.

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 148254976 + 20802721 = 12176^2 + 4561^2 .

It is a cyclic number.

It is not a de Polignac number, because 169057697 - 2⁶ = 169057633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169057397) 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, 2798 + ... + 18599.

It is an arithmetic number, because the mean of its divisors is an integer number (42271749).

Almost surely, 2^169057697 is an apocalyptic number.

It is an amenable number.

169057697 is a deficient number, since it is larger than the sum of its proper divisors (29299).

169057697 is an equidigital number, since it uses as much as digits as its factorization.

169057697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29298.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 169057697 is about 13002.2189260141. The cubic root of 169057697 is about 552.9403921027.

The spelling of 169057697 in words is "one hundred sixty-nine million, fifty-seven thousand, six hundred ninety-seven".