5409649 has 12 divisors (see below), whose sum is σ = 6355044. Its totient is φ = 4591104.

The previous prime is 5409643. The next prime is 5409671. The reversal of 5409649 is 9469045.

It can be written as a sum of positive squares in 2 ways, for example, as 2371600 + 3038049 = 1540^2 + 1743^2 .

It is not a de Polignac number, because 5409649 - 2⁹ = 5409137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5409643) 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 11 ways as a sum of consecutive naturals, for example, 5049 + ... + 6025.

It is an arithmetic number, because the mean of its divisors is an integer number (529587).

Almost surely, 2^5409649 is an apocalyptic number.

It is an amenable number.

5409649 is a deficient number, since it is larger than the sum of its proper divisors (945395).

5409649 is a wasteful number, since it uses less digits than its factorization.

5409649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 5409649 is about 2325.8652153554. The cubic root of 5409649 is about 175.5454978452.

It can be divided in two parts, 54096 and 49, that added together give a palindrome (54145).

The spelling of 5409649 in words is "five million, four hundred nine thousand, six hundred forty-nine".