605963649 has 4 divisors (see below), whose sum is σ = 807951536. Its totient is φ = 403975764.

The previous prime is 605963647. The next prime is 605963651. The reversal of 605963649 is 946369506.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (605963647) and next prime (605963651).

It is not a de Polignac number, because 605963649 - 2¹ = 605963647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605963598 and 605963607.

It is not an unprimeable number, because it can be changed into a prime (605963647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100993939 + ... + 100993944.

It is an arithmetic number, because the mean of its divisors is an integer number (201987884).

Almost surely, 2^605963649 is an apocalyptic number.

It is an amenable number.

605963649 is a deficient number, since it is larger than the sum of its proper divisors (201987887).

605963649 is a wasteful number, since it uses less digits than its factorization.

605963649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201987886.

The product of its (nonzero) digits is 1049760, while the sum is 48.

The square root of 605963649 is about 24616.3289098923. The cubic root of 605963649 is about 846.2178669197.

The spelling of 605963649 in words is "six hundred five million, nine hundred sixty-three thousand, six hundred forty-nine".