7049509 has 4 divisors (see below), whose sum is σ = 7464204. Its totient is φ = 6634816.

The previous prime is 7049507. The next prime is 7049521. The reversal of 7049509 is 9059407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9059407 = 7 ⋅1294201.

It can be written as a sum of positive squares in 2 ways, for example, as 5536609 + 1512900 = 2353^2 + 1230^2 .

It is a cyclic number.

It is not a de Polignac number, because 7049509 - 2¹ = 7049507 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 (7049501) 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, 207322 + ... + 207355.

It is an arithmetic number, because the mean of its divisors is an integer number (1866051).

Almost surely, 2^7049509 is an apocalyptic number.

It is an amenable number.

7049509 is a deficient number, since it is larger than the sum of its proper divisors (414695).

7049509 is a wasteful number, since it uses less digits than its factorization.

7049509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414694.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 7049509 is about 2655.0911472113. The cubic root of 7049509 is about 191.7430463910.

The spelling of 7049509 in words is "seven million, forty-nine thousand, five hundred nine".