605613979 has 2 divisors, whose sum is σ = 605613980. Its totient is φ = 605613978.

The previous prime is 605613959. The next prime is 605613991. The reversal of 605613979 is 979316506.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 605613979 - 2¹⁷ = 605482907 is a prime.

It is not a weakly prime, because it can be changed into another prime (605613929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302806989 + 302806990.

It is an arithmetic number, because the mean of its divisors is an integer number (302806990).

Almost surely, 2^605613979 is an apocalyptic number.

605613979 is a deficient number, since it is larger than the sum of its proper divisors (1).

605613979 is an equidigital number, since it uses as much as digits as its factorization.

605613979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 306180, while the sum is 46.

The square root of 605613979 is about 24609.2254855776. The cubic root of 605613979 is about 846.0550662106.

The spelling of 605613979 in words is "six hundred five million, six hundred thirteen thousand, nine hundred seventy-nine".