1608979 has 2 divisors, whose sum is σ = 1608980. Its totient is φ = 1608978.

The previous prime is 1608941. The next prime is 1609009. The reversal of 1608979 is 9798061.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1608979 - 2¹³ = 1600787 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (1608379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804489 + 804490.

It is an arithmetic number, because the mean of its divisors is an integer number (804490).

2^1608979 is an apocalyptic number.

1608979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608979 is an equidigital number, since it uses as much as digits as its factorization.

1608979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1608979 is about 1268.4553598767. The cubic root of 1608979 is about 117.1790911537.

The spelling of 1608979 in words is "one million, six hundred eight thousand, nine hundred seventy-nine".