5409949 has 4 divisors (see below), whose sum is σ = 5417820. Its totient is φ = 5402080.

The previous prime is 5409941. The next prime is 5409953. The reversal of 5409949 is 9499045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9499045 = 5 ⋅1899809.

It can be written as a sum of positive squares in 2 ways, for example, as 257049 + 5152900 = 507^2 + 2270^2 .

It is a cyclic number.

It is not a de Polignac number, because 5409949 - 2³ = 5409941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5409941) 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, 2794 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (1354455).

Almost surely, 2^5409949 is an apocalyptic number.

It is an amenable number.

5409949 is a deficient number, since it is larger than the sum of its proper divisors (7871).

5409949 is an equidigital number, since it uses as much as digits as its factorization.

5409949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 5409949 is about 2325.9297065905. The cubic root of 5409949 is about 175.5487428294.

The spelling of 5409949 in words is "five million, four hundred nine thousand, nine hundred forty-nine".