4749309 has 6 divisors (see below), whose sum is σ = 6860126. Its totient is φ = 3166200.

The previous prime is 4749299. The next prime is 4749377. The reversal of 4749309 is 9039474.

It can be written as a sum of positive squares in only one way, i.e., 4743684 + 5625 = 2178^2 + 75^2 .

It is not a de Polignac number, because 4749309 - 2⁸ = 4749053 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4749709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 263842 + ... + 263859.

Almost surely, 2^4749309 is an apocalyptic number.

It is an amenable number.

4749309 is a deficient number, since it is larger than the sum of its proper divisors (2110817).

4749309 is a wasteful number, since it uses less digits than its factorization.

4749309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527707 (or 527704 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 4749309 is about 2179.2909397325. The cubic root of 4749309 is about 168.0906186288.

The spelling of 4749309 in words is "four million, seven hundred forty-nine thousand, three hundred nine".