169940597 has 2 divisors, whose sum is σ = 169940598. Its totient is φ = 169940596.

The previous prime is 169940581. The next prime is 169940611. The reversal of 169940597 is 795049961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160934596 + 9006001 = 12686^2 + 3001^2 .

It is a cyclic number.

It is not a de Polignac number, because 169940597 - 2⁴ = 169940581 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169940527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84970298 + 84970299.

It is an arithmetic number, because the mean of its divisors is an integer number (84970299).

Almost surely, 2^169940597 is an apocalyptic number.

It is an amenable number.

169940597 is a deficient number, since it is larger than the sum of its proper divisors (1).

169940597 is an equidigital number, since it uses as much as digits as its factorization.

169940597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 169940597 is about 13036.1266103088. The cubic root of 169940597 is about 553.9012941743.

The spelling of 169940597 in words is "one hundred sixty-nine million, nine hundred forty thousand, five hundred ninety-seven".