169770897 has 20 divisors (see below), whose sum is σ = 254343936. Its totient is φ = 112852440.

The previous prime is 169770877. The next prime is 169770899. The reversal of 169770897 is 798077961.

It is not a de Polignac number, because 169770897 - 2¹² = 169766801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (169770899) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 26872 + ... + 32582.

Almost surely, 2^169770897 is an apocalyptic number.

It is an amenable number.

169770897 is a deficient number, since it is larger than the sum of its proper divisors (84573039).

169770897 is an equidigital number, since it uses as much as digits as its factorization.

169770897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090 (or 6081 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 54.

The square root of 169770897 is about 13029.6161493729. The cubic root of 169770897 is about 553.7168604042.

The spelling of 169770897 in words is "one hundred sixty-nine million, seven hundred seventy thousand, eight hundred ninety-seven".