4109649 has 4 divisors (see below), whose sum is σ = 5479536. Its totient is φ = 2739764.

The previous prime is 4109641. The next prime is 4109653. The reversal of 4109649 is 9469014.

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 a cyclic number.

It is not a de Polignac number, because 4109649 - 2³ = 4109641 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4109641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684939 + ... + 684944.

It is an arithmetic number, because the mean of its divisors is an integer number (1369884).

Almost surely, 2^4109649 is an apocalyptic number.

It is an amenable number.

4109649 is a deficient number, since it is larger than the sum of its proper divisors (1369887).

4109649 is a wasteful number, since it uses less digits than its factorization.

4109649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369886.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4109649 is about 2027.2269236570. The cubic root of 4109649 is about 160.1775243133.

The spelling of 4109649 in words is "four million, one hundred nine thousand, six hundred forty-nine".