3605578949 has 16 divisors (see below), whose sum is σ = 4170811008. Its totient is φ = 3053002752.

The previous prime is 3605578927. The next prime is 3605579017. The reversal of 3605578949 is 9498755063.

It is a happy number.

3605578949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3605578949 - 2²⁰ = 3604530373 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3605578894 and 3605578903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605578549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387182 + ... + 396384.

It is an arithmetic number, because the mean of its divisors is an integer number (260675688).

Almost surely, 2^3605578949 is an apocalyptic number.

It is an amenable number.

3605578949 is a deficient number, since it is larger than the sum of its proper divisors (565232059).

3605578949 is an equidigital number, since it uses as much as digits as its factorization.

3605578949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9884.

The product of its (nonzero) digits is 8164800, while the sum is 56.

The square root of 3605578949 is about 60046.4732436469. The cubic root of 3605578949 is about 1533.4101601025.

The spelling of 3605578949 in words is "three billion, six hundred five million, five hundred seventy-eight thousand, nine hundred forty-nine".