605694013 has 2 divisors, whose sum is σ = 605694014. Its totient is φ = 605694012.

The previous prime is 605693999. The next prime is 605694031. The reversal of 605694013 is 310496506.

605694013 = 17402² + 17403².

Together with next prime (605694031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302864409 + 302829604 = 17403^2 + 17402^2 .

It is a cyclic number.

It is not a de Polignac number, because 605694013 - 2⁵ = 605693981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 605694013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605694053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302847006 + 302847007.

It is an arithmetic number, because the mean of its divisors is an integer number (302847007).

Almost surely, 2^605694013 is an apocalyptic number.

605694013 is the 17403-rd centered square number.

It is an amenable number.

605694013 is a deficient number, since it is larger than the sum of its proper divisors (1).

605694013 is an equidigital number, since it uses as much as digits as its factorization.

605694013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 605694013 is about 24610.8515293559. The cubic root of 605694013 is about 846.0923342784.

The spelling of 605694013 in words is "six hundred five million, six hundred ninety-four thousand, thirteen".