169093979 has 2 divisors, whose sum is σ = 169093980. Its totient is φ = 169093978.

The previous prime is 169093957. The next prime is 169093993. The reversal of 169093979 is 979390961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169093979 - 2¹² = 169089883 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 169093979.

It is not a weakly prime, because it can be changed into another prime (169093909) 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 as a sum of consecutive naturals, namely, 84546989 + 84546990.

It is an arithmetic number, because the mean of its divisors is an integer number (84546990).

Almost surely, 2^169093979 is an apocalyptic number.

169093979 is a deficient number, since it is larger than the sum of its proper divisors (1).

169093979 is an equidigital number, since it uses as much as digits as its factorization.

169093979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 826686, while the sum is 53.

The square root of 169093979 is about 13003.6140745564. The cubic root of 169093979 is about 552.9799453611.

The spelling of 169093979 in words is "one hundred sixty-nine million, ninety-three thousand, nine hundred seventy-nine".