169006973 has 2 divisors, whose sum is σ = 169006974. Its totient is φ = 169006972.

The previous prime is 169006969. The next prime is 169006997. The reversal of 169006973 is 379600961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90117049 + 78889924 = 9493^2 + 8882^2 .

It is a cyclic number.

It is not a de Polignac number, because 169006973 - 2² = 169006969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 169006973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169006933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84503486 + 84503487.

It is an arithmetic number, because the mean of its divisors is an integer number (84503487).

Almost surely, 2^169006973 is an apocalyptic number.

It is an amenable number.

169006973 is a deficient number, since it is larger than the sum of its proper divisors (1).

169006973 is an equidigital number, since it uses as much as digits as its factorization.

169006973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 169006973 is about 13000.2681895413. The cubic root of 169006973 is about 552.8850852370.

The spelling of 169006973 in words is "one hundred sixty-nine million, six thousand, nine hundred seventy-three".