605645047 has 40 divisors (see below), whose sum is σ = 745738240. Its totient is φ = 491203440.

The previous prime is 605645023. The next prime is 605645057. The reversal of 605645047 is 740546506.

It is a happy number.

605645047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-605645047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605644997 and 605645015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605645057) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5879998 + ... + 5880100.

It is an arithmetic number, because the mean of its divisors is an integer number (18643456).

Almost surely, 2^605645047 is an apocalyptic number.

605645047 is a deficient number, since it is larger than the sum of its proper divisors (140093193).

605645047 is an equidigital number, since it uses as much as digits as its factorization.

605645047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 605645047 is about 24609.8567041744. The cubic root of 605645047 is about 846.0695335062.

The spelling of 605645047 in words is "six hundred five million, six hundred forty-five thousand, forty-seven".